Every Roll Has a Controlled History
PetiPaper controls the journey from incoming base paper and PE resin through coating, inspection, release, and shipment records--so approved samples, mass production, and any future investigation can be connected to the same documented specification.
Specification Locked
Approved sample and agreed tolerances define the production target.
Batch Identified
Production and inspection records are linked to batch numbers.
Evidence Retained
COAs, retained samples, and shipment evidence support review.
Control Principle
Documented inputs. Controlled process. Traceable output.
Incoming Check
In-Process Control
Shipment Linkage
Built Around Buyer Risk
Control What Matters After the Sample Is Approved
A sample alone is not enough. The production specification, inspection criteria, batch records, and retained references work together to reduce uncertainty across repeat orders.
Sample-to-Mass Variation
The approved sample, final specification, tolerances, and reference requirements are formally aligned before mass production release.
Batch Performance Concerns
Key material and process conditions are checked and recorded to support consistency in coating, grammage, moisture, surface quality, and roll condition.
Issues Without a Clear History
Batch numbering, COAs, retained samples, and shipment records create an evidence path for reviewing affected material and circumstances.
End-to-End Control Flow
From Incoming Materials to Shipment Evidence
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01
Input Control
Base Paper & PE Resin Receiving
Materials are received against applicable procurement and production requirements before use.
What is checked and linked
Base Paper
Supplier identity, grade, grammage, dimensions, appearance, and relevant incoming documentation.
PE Resin
Material identification, applicable grade, lot information, and supporting supplier records.
Record Created
Incoming material identification and source linkage
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02
Pre-Production
Specification & Reference Alignment
The production instruction is aligned with the customer-approved requirements before the run begins.
Production target may include
Application Base paper grammage PE coating weight 1S / 2S configuration Width & roll format Packing standardControl Point
Approved sample and agreed specification become the operating reference
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03
Process Control
Coating Parameter Control
Operating conditions are monitored to keep the production run within its defined requirements.
Key process considerations
Material performance: coating configuration, coating weight, adhesion, and surface condition.
Run stability: total grammage, moisture, dimensions, roll tension, and process consistency.
Record Created
Production parameters and in-process control records
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04
In-Line Verification
Online Inspection & Sampling
Inspection during production helps identify deviations before the material proceeds to final release.
Inspection focus
- ✓Visual surface condition, coating appearance, edge condition, and roll formation.
- ✓Applicable dimensional and material checks against the active production requirement.
- ✓Identification of nonconforming conditions for evaluation and disposition.
Decision Path
Continue, adjust, segregate, or investigate as required
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05
Release Gate
Final Product Inspection
Finished material is evaluated before shipment release and documentation issuance.
Final inspection is requirement-based
Final inspection items are confirmed according to the agreed specification and contract requirements. Depending on the order, this may include applicable checks for grammage, coating weight, dimensions, moisture, appearance, roll condition, packing, and other agreed quality criteria.
Release Evidence
Inspection result linked to the relevant batch and shipment
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06
Identity & Documentation
Batch Numbering & COA Issuance
Each released batch is supported by identifiers and applicable quality documentation.
Batch Number
Connects production, inspection, retained sample, and shipment references.
Certificate of Analysis
Records applicable release information for the specified material batch.
Customer Value
A clear reference for receiving checks and later review
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07
Future Reference
Retained Samples & Change Control
Evidence is preserved and material changes are evaluated instead of being treated as invisible substitutions.
Retained Sample
Retained references support comparison with the approved sample, production records, and material involved in a future inquiry or claim.
Change Control
Relevant changes to approved material, process, or requirements are reviewed and controlled through the agreed communication process.
Traceability Benefit
Comparison is based on evidence, not memory
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08
Logistics Evidence
Packing & Shipment Records
The batch history continues through packing, loading, and shipment handover.
Documented shipment readiness
Released goods are packed to the agreed standard and protected against moisture and transport damage. Applicable loading, packaging, quantity, and shipment records help connect delivered rolls to their production and inspection history.
Traceability Chain Complete
Input → production → inspection → release → shipment
When Questions Arise
A Practical Route to Investigate Batch Concerns
If an issue is reported, the affected batch can be reviewed against its production information, COA, retained sample, packing condition, shipment records, and available customer evidence. This helps distinguish potential manufacturing, transport, storage, or processing factors.
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1
Identify the Affected Batch
Confirm roll labels, COA details, delivery references, and issue scope.
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2
Collect Objective Evidence
Review photos, samples, machine conditions, storage, and processing observations.
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3
Compare Linked Records
Compare retained samples and production records with the agreed specification.
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4
Determine Corrective Action
Agree technical correction or a commercial resolution based on verified findings.
Quality Starts Before Production
Send Your Specification for a Controlled Review
Share your application, paper grade, PE coating requirement, roll format, target destination, and compliance needs. PetiPaper can help define a producible specification and quality documentation path for your order.