Optical brighteners for PP woven bags and raffia
Woven sack tape is drawn hot and thin, often from a resin blend that includes recycled material. Whiteness sells the bag, and the brightener has to deliver it at a dosage the sack price can absorb.
What the grade has to survive
Four things that decide the choice
- Thermal stability through tape extrusion and drawing
- No migration that would weaken the weave
- Works over recycled and filled PP blends
- Cost per tonne of tape, not cost per kilo of additive
These are the constraints we work through with customers on this application. Everything on this page traces back to the published data for the grades listed below.
Background reading on pp woven bags
Improve Whiteness and Durability with OBA for Woven Bags
PP woven bags are an essential part of daily life, widely used for packaging in agriculture, construction, and industrial applications.
Enhance quality with optical brightener for woven bags
Introduction: In the production of woven bags-particularly those utilizing recycled materials-additive selection is critical. Over time, woven bags often suffer
Improve Polypropylene Whiteness with Fluorescent Brighteners (OBA for PP)
Polypropylene (PP) plastic-known for its low density, lightweight nature, and versatility-is widely used across industries such as packaging, fibers, and
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Other application briefs
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Send us the pp woven bags brief
Substrate, process temperature, whiteness target and trial quantity. That is everything we need to name a grade.