Construction choices that still block a quote

bulk shrink film

Before a bulk shrink film line can be compared, open choices on resin, gauge and print route have to be named or marked undecided. This page is a material-options brief for PCR, single-resin and paper-plastic substitutes. It is not a sustainability scorecard and not a claim that we mill resin or own an extrusion plant.

PVC, polyolefin and paper-sleeve swatches on a spec bench

Decision order for a comparable construction

  1. Name the resin story

    PVC, polyolefin or polyethylene. Post-consumer recycled content is a lot file, not a site slogan.

  2. Pick a form

    Centerfold, singlewound or seamed sleeve. Do not average them on one RFQ row.

  3. Choose a gauge method

    Film thickness in μm or mil. Example anchors: 15-25 μm PVC wrap, 60-80 gauge polyolefin.

  4. Lock print route

    Digital for frequent artwork changes; flexographic printing for a stable volume. Record the open dispute instead of hiding it.

Option cards a buyer can verify

PCR film versus virgin PVC

Post-consumer recycled content can support a recycling report when the lot file names the share. It can also change clarity and shrink force. Accept an alternative only after the buyer checks tunnel temperature and the food-contact file, if the wrap needs one.

Check: lot file, not homepage badge

Single-resin polyolefin swaps

Mono-material polyolefin can improve recycling reporting. PVC can still give a tighter shrink at lower heat. Swapping resin to chase a cheaper quote is a new construction. Verify shrink ratio still fits the pack and that the rewind specification still matches the line.

Check: resin + shrink ratio together

Paper versus plastic outer

A paper-plastic substitute is a different pack family. If a factory offers a paper sleeve or a folding carton instead of shrink film, treat it as a new RFQ. Do not score it as a bulk shrink film saving.

Check: same family before compare

Files that support an option, not logos of allies

Food-contact and ink migration

If the wrap touches food or a food primary pack, ask for the FDA 21 CFR review path on that ink and film lot. A missing file is a reason to keep the quote pending, not a reason to advertise a green claim.

Recycled-content documents

Global Recycled Standard language, if used, must match the film lot. Forest Stewardship Council chain-of-custody, when required for a paper alternative, names a shipment. Neither document is granted by publishing this page.

Numbers that belong on the brief

15-25 μm

Example PVC wrap gauge, only valid with form and shrink ratio named.

60-80 ga

Example polyolefin gauge. Do not convert it into PVC micrometers on the same sheet.

4-color

Example flexo count. Digital short runs still need artwork revision written beside it.

What must be verified before accepting an alternative

Confirm the alternative uses the same form and web width, or accept a refit. Confirm the gauge method is the one you asked for. Confirm print route and plate or digital extras are itemized. Confirm any recycled or food-contact statement is a file for that lot. If those items stay open, the alternative is not yet comparable. Continue with inquiry options or the requirement form.

Send the open material choices with the inquiry

Mark undecided resins or forms instead of forcing a fake complete spec. Factories can quote a range or decline.

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