The whole value of a water-soluble laundry bag is that it is never opened. Contaminated linen goes in at the bedside, the bag goes into the machine sealed, and the film dissolves during the wash. Nobody touches the contents again.
A water-soluble laundry bag is a PVA bag used to collect and transport linen — in hospitals, care homes, laboratories and anywhere contaminated textiles have to be moved. The bag is filled at the point of use and closed. It then goes directly into the washing machine without being opened. The film dissolves in the wash cycle and the linen is released into the drum.
That single change removes the step where staff would otherwise open a bag of contaminated linen and handle it by hand. It also removes the bag itself from the waste stream, because there is no bag left to dispose of.
| Specification | What we supply |
|---|---|
| Film grade | Hot-water PVA, 70 °C and above — matched to the wash temperature your machine runs |
| Bag size | Made to the volume your collection routine needs |
| Film thickness | Set against the weight of wet and dry linen the bag has to carry |
| Closure | Designed for the closing method your staff use at the point of collection |
| Printed with handling instructions, department codes or your branding | |
| Format | Flat bags, or rolls and pre-cut packs for dispensing |
A laundry bag has two demands that pull in opposite directions. It has to be strong enough to carry wet linen without splitting on the way to the machine, and it has to dissolve completely in the wash so nothing is left in the drum or on the textiles.
The film grade is set by the wash temperature. A hot-water film rated for 70 °C and above dissolves in a standard thermal disinfection cycle. If your process runs cooler, the film has to be specified for that instead — a hot-water film in a cool wash is a bag that comes out of the machine still intact.
Send your wash cycle, load weight and bag dimensions. We reply within one business day with a film recommendation and a sample plan. You run the samples through your own machine with a real load. Bulk production starts only when the bag performs as agreed.
For how film grades are matched to wash temperature, read PVA film grades: cold, warm or hot water?. For the wider difference between dissolving film and biodegradable film, see PVA film vs biodegradable film: which one fits.
The questions buyers ask most about this application.
Hot-water PVA film, rated 70 °C and above, matched to the wash temperature and cycle your machine runs. A hot-water film used in a cooler wash will come out of the machine intact instead of dissolving.
Film thickness is set against the wet and dry load weight the bag has to carry, so the bag holds on the journey to the machine and then dissolves in the wash. Both are confirmed during sampling.
The bag is designed around how your staff close it at the point of collection — tape, tie, heat seal or an integrated closure. Tell us the method and we match the bag design to it.
Yes. Bags can be printed with handling instructions, department codes or your branding, which also helps with segregation at the point of collection.
It depends on bag size and film thickness. Send your target quantity with the enquiry and we confirm the exact minimum, unit price and lead time in the written quote.
Send your product, the pack size you need and your target quantity. We reply within one business day with a film recommendation, a sample plan and a quote.
Chat on WhatsAppor send the form — we reply within one business day
Sainsun PVA