A useful packaging quote starts with a complete description of the product, process, environment, and acceptance requirements. Dimensions and thickness are important, but they do not explain how the package will be filled, closed, stored, shipped, or judged in production.
The questions below turn a general request for “a poly bag” into a specification that a manufacturer can sample, qualify, and reproduce.
Product and package role
1. What is being packaged?
Describe the product, maximum weight, dimensions, shape, surface, and physical form. Note sharp corners, unfinished edges, abrasion, dust, oils, liquids, powders, granules, irregular shapes, or components that can concentrate stress on the film.
2. What job does the flexible packaging perform?
Identify whether it is a primary bag, process liner, dust cover, component of a larger package, storage bag, pallet cover, tubing, sheeting, or protective film. A liner inside a drum has different requirements from a standalone package handled throughout distribution.
3. What fit is required?
Provide the product or container geometry, measurement convention, maximum dimensions, required overhang, closure allowance, opening direction, and areas where folds or excess film are unacceptable. Include a drawing, current sample, or product photo when possible.
Filling, handling, and closure
4. How is the package opened and filled?
State whether loading is manual or automated, the expected line speed, how operators separate and present the bag, the fill height or drop, and any guides, jaws, sensors, or rollers that contact the film. Opening and dispensing behavior can be as important as puncture strength on a high-volume line.
5. How is the package closed?
Define the manufacturer's seal construction and the customer's final closure. If heat sealing is used, provide equipment, temperature, dwell, pressure, seal width, product contamination risk, and inspection method. If the bag is tied, taped, clipped, or folded, state the required length and handling steps.
6. What routine abuse must it survive?
Map the package from dispensing through disposal. Include dragging, drops, compression, stacking, vibration, pallet movement, rehandling, freezing, thawing, opening, or repeated access. Focus on the worst routine event, not only the package at rest.
Environment, distribution, and compliance
7. What temperatures and exposures are expected?
Document temperatures at filling, storage, shipping, and use, along with humidity, sunlight, dust, moisture, oils, chemicals, refrigeration, or freezing. Exposure conditions can affect film, seals, printing, static, and usability.
8. How will the package be stored and distributed?
Describe secondary cartons, totes, drums, bins, pallet patterns, stacking height, transportation modes, storage duration, and customer handling. A package may pass on the production floor but fail after repeated vibration, compression, or temperature cycling.
9. What regulatory, cleanliness, or customer requirements apply?
Identify food-contact, pharmaceutical, chemical, hazardous-material, workplace-labeling, cleanliness, certification, customer, or market requirements. The customer and qualified personnel should determine which requirements apply and approve the material, documentation, warnings, and complete packaging system.
Identification, logistics, and quality
10. What printing or identification is required?
Define color, print method, number of colors, random-repeat or registered placement, artwork dimensions, warnings, barcodes, lot codes, orientation, and durability. Test printed flexible packaging in the filled and handled condition, not only as a flat proof.
11. How should the product arrive and be replenished?
Specify roll, coreless roll, separated bag, bundle, sheet, or other format. Include bags per roll or bundle, perforation strength, winding direction, roll diameter, carton count and weight, labels, pallet quantity, and any point-of-use presentation requirement.
12. How will the package be approved and accepted?
Define samples, production trials, test conditions, tolerances, sampling, acceptance criteria, required records, approved reference samples, lot traceability, and change notification. A nominal description is not enough when performance depends on several interacting features.
Standard or custom?
Use a standard product when it satisfies the complete specification and workflow without unnecessary adjustments. Consider a custom structure when a standard bag creates repeated fit problems, excess material, line delays, failures, equipment interference, or missing features.
The decision should be based on total operating performance rather than the number of custom line items. A precisely sized bag can be simpler and less wasteful than a standard bag that employees must fold, stretch, trim, or repack.
Compare total operating cost
Unit price is only one component of packaging cost. Include material usage, freight, storage, line speed, labor, scrap, product loss, cleanup, rework, equipment adjustments, customer complaints, and emergency replacement orders. Overspecification adds material and shipping weight; underspecification adds failure risk.
The best value is a qualified structure that performs consistently at the required cost—not automatically the cheapest bag or the thickest one.
Build a useful quote package
Send a dimensional drawing or sample, product details, process description, current problems, desired material and thickness if known, closure, features, printing, pack-out, annual and release quantities, delivery locations, timeline, documentation requirements, and approval plan. Mark assumptions clearly so they can be confirmed before production.
Related reading: Use Champion Plastics' Build A Bag guide as a measurement and specification starting point.
Discuss your specification with Champion Plastics
Champion Plastics manufactures bags, liners, films, sheeting, tubing, and specialty polyethylene configurations. Call 800-526-1230 or submit the application details through the quote form to turn the requirements into a sample and controlled specification.