Packaging approval worksheet

Tissue Soft Pack Seal Approval Record

A tissue soft-pack seal decision needs an identified package construction and a defined failure question. Is the buyer concerned about an opening during handling, an inconsistent bond or a consumer opening that tears the film? Commission the appropriate check rather than requesting a generic seal pass. ASTM publishes a seal-strength method for flexible barrier materials and a separate conditioning practice. Their existence does not establish automatic applicability or a pass threshold for your tissue pack; agree those details with the testing provider.

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Last reviewed: 11 October 2026
Reviewed by: VELUPLY editorial guidance
Evidence rule: SKU and market matched

BUYER CHECKLIST

Seal test commissioning record

Construction and identity: SKU ___; filled-pack dimensions ___; film reference and declared layers ___; film thickness declaration ___; packaging revision ___; sample preparation route ___. Mark whether samples are blank, filled or representative production packs. A seal made on a laboratory coupon may help characterize a bond while leaving complete-pack handling questions open.
Seal-zone map: Top/bottom/side seal locations ___; overlap arrangement ___; seal width as specified ___; opening or tear feature ___; known stress points ___. Mark zones on a photograph or drawing and connect each specimen to its location. Avoid presenting several readings from one easy-to-cut zone as evidence for every seal on the pack.
Question and method: Failure concern ___; proposed method/edition from provider ___; suitability explanation ___; specimen and grip arrangement ___; reporting units ___; failure-mode record ___. ASTM F88/F88M concerns seal strength of flexible barrier materials. Ask the provider to confirm how it applies to this construction and what the report cannot establish.
Condition and scope: Sample handling/storage before test ___; agreed conditioning ___; number and selection of specimens ___; filled-pack handling trial if relevant ___; comparison reference ___. ASTM D4332 addresses conditioning for packaging tests. Have the provider select and state appropriate conditions rather than borrowing an unexplained temperature or duration from a different packaging application.
Acceptance and ownership: Agreed strength or other criterion ___; unacceptable failure modes ___; opening-performance requirement ___; test/report owner ___; decision authority ___; supplier correction responsibility ___. Establish the criterion before results arrive. Separate an instrument result from the buyer’s decision about whether the pack is convenient and sufficiently robust for its intended use.

BUYER CHECKLIST

Translate observations into targeted follow-up

Strength result changes between specimens: Review specimen identity, seal-zone location, conditioning and sample preparation with the provider. Ask whether the observed range reflects the intended scope or a recording error. Preserve individual values and failure descriptions; an average alone may hide a weak location important to handling.
Pack opens during agreed handling: Identify the failed zone, package condition and operation that preceded failure. Ask for an investigation of the relevant construction and sealing route. Retest the revised version against the same agreed question, and retain the original specimen evidence so the correction can be compared rather than judged from a fresh photograph.
Seal survives but consumer opening fails: Record whether the film tears unexpectedly, the intended opening is hard to locate or the tissue becomes difficult to access. Request a functional design review. A stronger seal is not automatically a better consumer package; assess the required protective bond and intended opening as separate but connected requirements.

DECISION POINTS

What to align before the next commitment.

Illustrative approval split

A buyer might receive satisfactory commissioned strength results while a filled-pack trial shows an awkward opening. Record the completed test and keep consumer-use approval conditional. Request the appropriate design correction rather than treating the numerical result as blanket approval of the entire package. No particular tissue construction is claimed to have this result.

Avoid medical-packaging assumptions

Some package-integrity publications address sterile barriers or medical use. A tissue retail pack has its own purpose and material structure. Ask the provider to justify method applicability and reporting language; do not label a consumer tissue pack sterile or contamination-proof because a packaging method was discussed.

Carry the record into material changes

A new film grade, thickness, surface treatment or seal arrangement can change the approval question. Ask which evidence remains applicable and which checks need repeating. Tie any accepted change to the identified construction and revised sample instead of relying on a promise that the new material is equivalent.

WORKING SEQUENCE

A clearer route from question to decision.

01
Map the package construction and seal zones, then identify the buyer’s actual failure concern. Agree which questions require a commissioned test and which need a filled-pack use trial.
02
Request a method, conditioning and specimen plan from the competent provider. Confirm reporting units, individual observations, acceptance criteria and limitations before sending identified samples.
03
Review the report and functional trial against their separate requirements. Investigate inconsistent or failed observations using the actual seal zone and sample identity, then assess the corrected construction.
04
Record the decision owner, accepted construction and open conditions. Attach the approved seal record to the packaging brief and reopen affected checks when material or sealing arrangements change.

DIRECT ANSWERS

Questions buyers ask before moving forward.

01Does seal strength prove that a tissue pack cannot leak?+

No blanket integrity claim follows from a strength result. State the precise question and ask the provider what its selected method detects. Commission additional suitable work only if that question matters to the intended package.

02Should the buyer specify one minimum strength for every pack?+

Use a criterion agreed for the actual film, seal arrangement and use case. A universal number can be inappropriate across different constructions. Record who established the criterion and why it answers the purchasing requirement.

03Can we test an empty pack?+

Ask the provider whether an empty specimen represents the commissioned method and question. Keep that result separate from filled-pack handling or consumer-use trials. Document which approval conditions remain open.

SOURCES & LIMITS

Trace the question and the verification.

These are buyer commissioning and approval records, not VELUPLY production results. Source publications establish the referenced questions or method scope; actual sample results, acceptance criteria and supplier capability require matched evidence.

01
ASTM F88/F88M-23 public catalogue entry
Standards verification · accessed 2026-10-11
02
ASTM D4332-22 public catalogue entry
Standards verification · accessed 2026-10-11