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ENVELOPE SEAL,SEAM AND WINDOW PATCH TESTING
Product Details
- This method describes procedures for evaluating the following properties of envelopes : (1) film thickness of seal, (2) seal, seam, and window patch adhesion, (3) humidity resistance, (4) discoloration and staining of seal, seams, and patch.
- The functionality of an envelope may be impaired if the adhesion characteristic between paper surfaces is impaired due to the changing environment to which the envelope is subjected.
- These test procedures are useful for the comparison of envelope quality.
- The precision statement in TAPPI T 411 is applicable for dry adhesive film thickness.
It Provides information on:
- Reagents
- Test specimens
- Keywords
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