Lining, support and positioning: the three jobs pulp does
Almost every molded pulp part inside a carton does one of three jobs, and knowing which one you are buying is what keeps a specification honest and a cost down.
- Lining - a shaped barrier between the product and the carton surface. Cushioning is secondary; the tray exists to keep the product off a flat wall and to absorb small impacts.
- Support - a part that carries the product's weight through the pack, typically in a case of several units or a heavy item where the carton floor would otherwise bow.
- Positioning (fixation) - a part whose only job is to hold a product in a fixed orientation, for automated assembly, for a display angle, or so a machine can pick it up reliably.
Real programs usually combine two of the three: a positioning cavity that also prevents contact. Separating the functions at the specification stage is what tells us the wall thickness, the fiber grade and the tool cost you actually need, instead of building the heaviest version of all three.
The same part can be dry pressed for economy or wet pressed for a smooth, print-ready surface, and both stay in the paper stream at end of life.
MOQ is 10,000 pieces per design; tooling 7–15 days; production 15–25 days after sample approval. Describe the product and how it travels and we will classify the part for you - or see the molded pulp range.
FAQ
Q: Are you a manufacturer or trading company?
A: We are a manufacturer founded in Hong Kong in 2013, with two production bases in Dongguan, China and Ho Chi Minh City, Vietnam, and a total manufacturing area of 26,000 square meters. You are welcome to visit or audit our factory.
Q: What is your MOQ for custom molded fiber packaging?
A: Our standard MOQ is 10,000 pieces per design. If your project requires a different quantity, contact us at info@csl-packaging.com and we will review the options with you.
Q: What is the production lead time?
A: Lead time is generally 15-25 days after sample approval, depending on order quantity and technical difficulty. The exact schedule is confirmed together with your order.
Q: Is molded fiber packaging safe for direct food contact?
A: Yes. Our food-grade molded fiber trays are produced from virgin plant fiber and comply with food-contact requirements. Please tell us your destination market when requesting a quotation, and we will confirm the applicable compliance documents (for example FDA or EU 1935/2004).
Q: Are your molded fiber food trays PFAS-free?
A: Yes. We offer PFAS-free, plastic-free molded fiber trays with water and oil resistance achieved through fiber selection and forming process, rather than fluorochemical coatings.
Q: Can you produce trays in custom shapes and compartment layouts?
A: Yes. We custom-mold trays to your product dimensions and required compartment layout, based on your 3D drawing or physical sample. Samples are provided for approval before mass production.
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