A shopping bag, a delivery box and a reusable cup are all used repeatedly, but represent different projects. Before choosing an additive, identify the component to be treated and how it will be used. This guide proposes a way to structure that initial assessment with Deltachem.
Three applications, different questions
- Reusable bags: define whether the project concerns the fabric, a coating, the lining or the handles. Specify how the bag is cleaned and which strength and finish requirements must be maintained.
- Delivery boxes: identify the resin, processing method and handling areas. Describe the expected washing cycles, stacking, impacts and wear to decide what to assess.
- Drinks containers: consider the body, lid, spout and seals separately. They may use different materials; do not assume one product reference suits every component.
These examples are assessment scenarios. They do not imply a universal recommendation or guaranteed results for every reusable product.
Start with design and maintenance
Material protection is assessed alongside the product’s requirements. Cleaning access, disassembly and maintenance instructions remain part of the project. Incorporating an additive does not in itself justify cleaning less frequently.
Before manufacturing samples, prepare an outline of the components, their materials and conditions of use. Flag any unknown details: the initial conversation also helps identify missing information.
Define what you want to check
In addition to antimicrobial activity, agree which properties each component must retain. Depending on the project, these may include colour, transparency, flexibility, strength or fit between parts. Cleaning and ageing conditions represented in the assessment should reflect the intended use.
If the product will contact food or drinks, specify which surfaces will be in contact, with what contents and under what conditions. The relevant documentation must be reviewed for that application; antimicrobial performance does not replace this review.
Look beyond the cost of the additive
To assess commercial suitability, consider cost per part, possible process adjustments, assessment and documentation requirements. Also define who would value the property and how it could be explained using the evidence obtained. Adding a function does not in itself guarantee a higher selling price.
What to prepare for an initial enquiry
- A drawing or photograph of the product and the components to be assessed.
- Material and grade, if known, together with the manufacturing process.
- Expected conditions of use, washing and wear.
- Properties to retain and the assessment objective.
Continue exploring: How to prepare a trial in plastic and how to interpret antibacterial test results.
Next step: Assess my reusable product.
Application basis: Addmaster product literature on reusable bags, boxes and containers. The project criteria are guidance from Deltachem. Manufacturer information.