25mm coding machine ribbon hot stamping foil

General terms and determination of 25mm coding machine ribbon hot stamping foil

4. The font is thick black and flowered: the handwriting is thick black or empty, with diffusion and unreal handwriting. However, the printed packaging materials are legible

Judgment: in case of this phenomenon, it is judged that the test item is qualified, otherwise it is unqualified.

5. Trailing: there are ink scratches at the root of the word, and the trailing phenomenon occurs, but the handwriting of the printed packaging material is clear, so it is determined that the test item is qualified; Otherwise, it is unqualified.

6. Unclean deinking: the transfer part on the base film is opaque and unclean deinking occurs, but the handwriting is clear and legible. It is determined that the test item is qualified, otherwise it is unqualified.

7. Burr: the ink on the edge of the handwriting is not round and burr like, and the adhesion with the printing material is poor.

8. Tape following: if the coding ribbon and the printing material are not separated in time for two consecutive times during the printing process, the test item is unqualified, otherwise it is qualified.

9. Powder dropping

9.1 printing powder loss: it is a standard index, which is divided into slight powder loss, obvious powder loss and serious powder loss

9.2 kneading powder: as a reference index

9.3 powder dropping is divided into four levels:

9.3.1 slight powder dropping: sporadic powder dropping;

9.3.2 slight chip drop: sporadic chip drop;

9.3.3 serious powder dropping: the ink falls off in a large area in the form of powder;

9.3.4 serious film drop: ink falls off in a large area in a sheet shape.

General terms and determination of 25mm coding machine ribbon hot stamping foil