White R Liquid from Riki Chem Tech is a polyester‑focused optical brightener designed to deliver a brilliant, bluish‑white effect at low dosage in exhaust and continuous processes. It is supplied as a liquid dispersion that is easy to handle, easy to dilute, and suitable for a wide range of polyester and polyester‑rich fabrics.

• High‑concentration optical brightener specifically for polyester and polyester blends.

• Available in multiple strength levels so you can optimise both whiteness and cost per kg of fabric.

• Works reliably in high‑temperature exhaust and pad / continuous processes.

• Good whiteness and fastness properties when applied under recommended conditions.

White R Liquid – At a glance

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Why choose Riki Chem Tech

Riki Chem Tech focuses on one core chemistry – White R Liquid for polyester – so you get depth of experience instead of a long, unfocused product list.

Our range is built around White R for polyester, allowing better control on quality, performance, and consistency at every stage.

RCT's White R Liquid is formulated with finely dispersed, nano‑scale particles that give high brightness even at very low dosages compared to conventional brighteners.

Standard and higher‑strength options are available, and concentrations can be tuned based on your machine type, recipe, and cost targets.

Thanks to the fine particle size and optimized formulation, typical usage can be as low as 20–50 grams per 100 kg of goods, versus the 200–500 grams often needed with traditional optical brighteners, helping reduce chemical load and overall cost.

Experience built into every batch

Riki Chem Tech is led by founders with more than 40 years of hands‑on experience in textile chemistry, polyester processing, and dye‑house operations. This practical background shapes how White R Liquid is formulated, tested, and supported in the field.

Each batch is checked for key parameters such as shade, strength, and dispersion quality so that you can expect consistent whiteness from trial to bulk production. Technical feedback from mills and processors is continuously used to refine recipes and recommendations

Ready to discuss your White R requirements?

Whether you are running exhaust dyeing machines or continuous ranges, Riki Chem Tech can help you select the right White R concentration and dosage as per your desired whiteness shade . Share a few details and get a tailored suggestion for your process.