How to Choose the Best Compostable Garment Bags Supplier

The search for the best compostable garment bags supplier usually starts after a buyer has already been burned once. Bags arrive thinner than approved. The certification does not match the invoice. The hanger slot tears on the first packed truck. For dry cleaning groups, apparel fulfilment teams, uniform distributors and e-commerce clothing brands, those failures create rework, garment damage and customer complaints. This guide sets out a practical supplier selection method for B2B buyers who need garment bags that protect clothing in transit and still break down in a certified composting environment. Because We Care, a supplier of plant-based packaging, lists a Compostable Garment Bag among its current product range, which helps when comparing a real portfolio against the criteria below.

Start With the Bag Specification, Not the Sales Brochure

Before asking for prices, write down the functional spec. Garment bags appear simple, but the wrong length, seal position or film gauge will surface only after a few thousand units have been packed. Define the finished width, length, hanger opening, seal type, pack format and whether the bag must be clear, tinted or printed.

Buyers often discover that the same supplier can consolidate orders across garment bags and Bin Liners, which reduces freight cost and keeps compliance paperwork in one place. Because We Care shows a garment bag alongside five bin liner options, including 30L, 10L, 37L and 240L formats. That matters because a supplier running multiple film product types usually understands gauge control, sealing and converter tolerances better than a one-product vendor.

Ask the supplier to quote the bag in microns, not just “standard weight.” A 20-micron film and a 30-micron film can both be called a garment bag, but they behave differently on a semi-automatic packing line. If your operation uses sharp hangers, reinforced top-slits matter more than a lower unit price. The objective is to compare like-for-like films rather than vague catalogue claims.

Certifications Are the First Hard Filter

“Compostable” is not a free-form adjective. A credible supplier should be able to name the standard the bag was tested against and provide a certificate number. In Australia, the main references are AS 4736 for industrial composting and AS 5810 for home composting. The European reference is EN 13432, while ASTM D6400 is commonly used for US-bound products. ISO 17088 sets international conformity rules for third-party certification.

The EN 13432 testing framework, for example, requires the material to disintegrate within 12 weeks under industrial composting and achieve at least 90% biodegradation within 180 days. AS 4736 follows a similar logic. That is a much stricter claim than a vague “biodegradable” label, which does not necessarily specify a time frame or final residue. The Australasian Bioplastics Association maintains a verification register where buyers can check certified products against AS 4736 or AS 5810.

Because We Care states that its packaging meets Australian and international standards. That is a useful starting point, but even then the buyer should still request the actual certificate, check the expiry or renewal date, and confirm that the garment bag SKU is covered. A supplier can have one certified resin and one uncertified film product under the same brand.

Demand a Technical File, Not a Sales Email

A price quote without supporting data is not enough for a B2B purchase order. Ask for a certificate of analysis, a technical data sheet and, where relevant, a safety data sheet. For flexible compostable films, request tensile strength in megapascals and elongation at break in percent. Common film test methods include ASTM D882 and ISO 527-3. For the seals, ASTM F88 reports the force in newtons needed to pull a sealed sample apart. These documents should cover the exact film you are buying, not a similar product from the same factory.

PBAT and corn starch are common materials in compostable flexible packaging, but the formulation changes mechanical strength, clarity, softness and sealing behaviour. Because We Care lists a Biodegradable PBAT Corn Starch Gloves product in the same range, which signals experience with corn starch and PBAT materials. Still, a professional buyer should ask whether the garment bag film is a PBAT blend, a PLA blend or another formulation. If the supplier cannot answer, the technical file will be weak.

Produce Bags attract similar documentation requests from buyers, because a film used for food or fresh produce often has stricter clarity and cleanliness expectations. The discipline of checking one film SKU against its COA carries directly over to garment bags.

Red Flags in a Technical File

• Missing lot or batch number on the COA.
• Tensile values reported only for the resin, not the finished film.
• No test standard named for seal strength.
• A TDS that does not state film thickness tolerance.
• Certification for the factory rather than the product.

Compare the Supplier’s Current Range With a Scorecard

A supplier with a narrow range may be a trading company that cannot explain extrusion, conversion or sealing failures. A supplier with a wider plant-based packaging range usually has more internal quality data. The Because We Care site currently displays 17 SKUs across categories. That gives a buyer a useful baseline for evaluation.

A scorecard works best when the buyer assigns a numeric weight to each category: functional spec, certification, technical file, range depth, production lead time, minimum order quantity and price. Suppliers that score high on documentation and range depth usually produce fewer line-stopping surprises later.

FAQ

What certification should a compostable garment bag have in Australia?

Look for AS 4736 for industrial composting or AS 5810 for home composting. If the bag will be used internationally, EN 13432 or ASTM D6400 may apply. Always request the certificate number and check it against the certifier’s register.

How do I verify a supplier’s compostability claim?

Ask for the certificate of analysis and technical data sheet for the exact garment bag SKU. Confirm the film thickness, tensile strength, elongation at break and seal strength are reported for the finished product, not the raw resin. Cross-check the certification against the Australasian Bioplastics Association or the relevant international body.

Can I combine garment bags with bin liners or produce bags in one order?

Yes. Many suppliers, including those with broad plant-based packaging ranges, allow mixed SKU orders. Combining garment bags, bin liners, produce bags and Doggy Bags can reduce freight cost and consolidate compliance paperwork, provided each SKU has its own certificate.

What film thickness should I ask for?

There is no universal answer. A light garment bag might use 20 microns, while a heavy-duty uniform bag may need 30 microns or more. Define the pack weight, hanger type and transport method, then ask the supplier to quote a specific micron value and film thickness tolerance.