Water-soluble bags, made to your size and spec

PVA Packaging is the water-soluble packaging brand of Shenzhen Sainsun Packaging Co., Ltd., a China-based manufacturer of water-soluble PVA bags and film for fishing, detergent, agrochemical and dye packaging, plus biodegradable bags. Tell us what you pack — we reply with a film recommendation and a quote within one business day.

We reply within one business day.
Real footage: a PVA fishing bag dissolving in water
18 yearsin manufacturing
OEM & ODMyour drawing or sample
Your specsize, thickness, dissolving temperature
Sample firsttest on your product before bulk

What do you need to pack?

Pick your product. We match the film and the bag to it.

Choose the film by water temperature

Typical references. We tune the formula and thickness to your product and test samples with you.

Cold water

20–30°C

Fishing bags and single-dose products.

Warm water

40–60°C

Detergent pouches and general packaging.

Hot water

70°C and above

Laundry bags and embroidery backing.

From your enquiry to bulk order

Most projects start with a sample.

Send your spec

Product, bag size, thickness, temperature, quantity.

Sample and test

We make samples. You test them on your own product.

Confirm

Agree film, size, packing and price.

Bulk order

Production, quality check and shipping.

Production and quality

A look at the film production, converting and testing behind our products.

Film production line
Lab testing
Warehouse with racks and pallets of film rolls
Warehouse
Technician adjusting a production machine
Production floor
Film slitting and rewinding machine
Slitting and rewinding line
Film printing

Some facility photos show our film partner's production site.

Questions buyers ask before ordering

Short answers to what most enquiries ask. Anything not covered here, ask us directly — we reply within one business day.

What is a water-soluble PVA bag used for?

A water-soluble PVA bag holds a pre-measured dose of a product and dissolves completely in water, releasing the contents. Typical uses are fishing bait bags, detergent and single-dose liquid pouches, agrochemical packs, dye and pigment packs, embroidery backing film and hospital laundry bags. Tell us what you pack and we match the film grade to it.

What is the difference between PVA film and biodegradable film?

PVA film dissolves in water, so the pack disappears in the wash or in the water instead of being thrown away. Biodegradable film does not dissolve; it breaks down in composting conditions. Choose PVA when the pack has to dissolve, and biodegradable film when the pack is handled dry and disposed of as waste.

Which dissolving temperature do I need?

It depends on your process water. Cold-water film (20–30°C) suits fishing bags and single-dose products, warm-water film (40–60°C) suits detergent pouches and general packaging, and hot-water film (70°C and above) suits laundry bags and embroidery backing. We tune the formula and thickness to your product and test samples with you.

Can you make bags in my own size, thickness and print?

Yes. Every order is made to your specification. Send bag size, film thickness, dissolving temperature, artwork and target quantity, and we produce samples for you to test on your own product before a bulk order. Custom printed film is available, including hazard pictograms for agrochemical packs.

What is your minimum order quantity?

MOQ depends on bag size, film grade and whether the pack needs printing. Send your target quantity together with your enquiry and we confirm the exact minimum, unit price and lead time in the written quote — before you commit to anything.

How does sampling work before a bulk order?

Sampling is the first step of every project. After we see your spec we confirm the sample plan and timing with you, then you test the sample on your own product. Only when the film and the bag perform as agreed do we move to bulk production, quality check and shipping.

Do you supply film in rolls as well as finished bags?

Yes. We supply water-soluble film in rolls for customers who fill and seal on their own lines, and finished bags and pouches for customers who want a ready pack. Tell us the roll width, thickness and core size, or the bag size you need, and we quote accordingly.

How fast do you reply and do you ship internationally?

We reply to enquiries within one business day, and we work with customers worldwide. Share your delivery country, quantity and target market and we include packing, shipping terms and documentation in the quote.

Send us your product and bag size

We reply with a film recommendation and a quote. Not sure what you need? Tell us what you pack and we will suggest options.

Get a quote