Product sample · Two Garment Colors
Blown-Film Extrusion
The compound grade determines how we prepare it for extrusion. On the blown-film line we check the width, thickness and evenness of the film before winding it.
How We Manufacture Biodegradable Bags
We start with prepared compounds, blow our own film and turn it into flat bags, mailers, carriers and rolls. Printed orders pass through flexographic printing before cutting and sealing.
Product sample · Overlapping Zip Bags
The photos on this page show finished bag samples. You can see their openings, prints and closures.
Product sample · Long Printed Flat Bag
From Prepared Compound to Finished Bag
We buy prepared compound pellets and record the grade and batch when they arrive. Our factory then blows the film, prints it where required and makes the bags.
- Film production
We blow the prepared compound into film and wind it onto rolls. We check the film width, thickness and surface as the roll takes shape. - Printing and roll preparation
For printed bags we run the agreed artwork on the film. Slitting divides a wide roll into narrower rolls, which we rewind for the next operation. - Bag conversion and packing
We seal and cut the film, adding the specified handle, closure or perforation. After inspection, we count the finished bags or rolls and pack them into cartons.
Film
Blown-Film Production
Print
Flexographic Printing
Convert
Bag Making
Inspect
Product Checks
What Happens to the Film
A flat roll has no flap, handle or side seam yet. Those details come later, so the film width and print layout have to allow for the finished shape.
Product sample · Two Garment Colors
Product sample · Narrow Bag Back
Flexographic Printing
We check that the colors line up, the ink adheres and the design sits where it should. A logo near a fold or seal needs to remain visible once the bag is made. Plain film can go straight to conversion.
Product sample · Filled White Mailer
Bag Making
A mailer needs a flap that reaches its closure. A carrier needs the handle in the right place. For roll bags we add the tear line and check how one bag separates from the next.
Product sample · Frosted Zip Bag
Following a Batch through the Factory
The compound batch identifies the incoming material. The order and approved sample tell us which bag to make from it.
- Receive the compound
Match the supplier, grade and batch number to the order and inspect the packaging for damage. - Prepare the material
Dry the compound if the grade requires it. Prepare any color additions specified for the film. - Blow, print and cut the film
Wind the film, print the orders that need artwork, then slit and convert the rolls. Check the edges, opening or tear line as the bags come off the line. - Check finished bags
Use the approved sample to check the size, gauge, print and construction of the finished bag. - Pack and release
Count the bags or rolls in each pack. Check the carton labels, shipping marks and batch details before the cartons leave the factory.
Product sample · Printed Zip Bag
What We Check before Dispatch
We inspect the incoming compound, the work on the line, the finished bags and the packed shipment. Each check catches a different kind of mismatch.
- Material and film
At receiving we check the grade and batch on the supplier’s packaging. At extrusion we measure width and thickness and look for uneven film. - Print and bag construction
We check the print position and adhesion, then inspect the cut edges and seams. We also check the parts the user handles, such as a mailer flap, carrier handle or roll perforation. - Finished goods and dispatch
We compare finished bags with the approved reference. At dispatch we check the pack count, carton mark and batch information so the cartons can be matched to the order.
What to Ask for When Comparing Suppliers
An existing sample, a custom sample and a quotation answer different purchasing questions.
An Existing Sample
Examine the film surface, print and seams on a bag we already make. Ask us how its dimensions and construction compare with the bag you have in mind.
A Custom Sample
Pack your own product into the custom sample. Check the opening, closure and printed area while the bag is filled.
The Written Specification
Look for the bag size, thickness, artwork, closure and packing count on the quote. Our film thickness is quoted in microns for both walls combined, so check the basis of any figures you compare.
Have a Bag You Want Us to Make?
Send a reference bag or drawing and tell us what your team will inspect, such as a print position, a seam or the count on a roll.
Email Your Bag DetailsFilm Production
Bag Conversion
Product Inspection
Factory Questions
Yes. We blow film from prepared compounds. We can print it, slit and rewind it, then seal and cut it into the bag specified for the order.
We buy prepared compounds for our film line. Base-polymer production and starch compounding take place outside our factory.
A flat bag needs the specified seal and opening. A mailer also needs room for its flap and closure. With rolls we set the perforation, winding and number of bags on each roll.
We check the compound on arrival, the film and print on the line, the finished bag against its sample, and the quantities and labels on the packed cartons.
Ask which material, gauge and size the sample represents. Try your contents in it and inspect the seams. To check your own print or closure, see our sample-development page for custom samples.
Those checks cover manufacturing quality. A finished bag needs separate evidence to support a compostability claim. We currently have no product compostability certificates or test reports.