Preventing Unclean Ink on Degradable Pharmaceutical Packaging Film: From Ink Management to Plate Standards

An overview of techniques for preventing and solving unclean ink on degradable pharmaceutical packaging film:

Keep the amount of ink consumed on degradable pharmaceutical packaging film under control to minimize old ink generation. When old ink is produced, wrap and store it correctly, blend it into use in batches, and protect the ink well.

Measure the viscosity of ink for degradable pharmaceutical packaging film in a timely way, and keep it within the proper range.

Select the correct solvent mixing ratio for degradable pharmaceutical packaging film, prevent water from entering the solvent, and protect the solvent properly.

Which printing technique is commonly used for cellophane pharmaceutical packaging film?

Cellophane pharmaceutical packaging film is a non-polar material and has no pores, so ink does not dry easily. These traits are not favorable for printing; therefore, the plastic film needs surface treatment before printing.

During printing, cellophane pharmaceutical packaging film is affected by tension. Within the limits allowed by its strength, increasing tension also raises elongation, which can create difficulties for color printing registration accuracy.

When cellophane pharmaceutical packaging film is made with additives, those additives can readily seep out during printing. They may form an oily layer, an ink layer, a coating, and similar substances on the film surface.

Standards for using different printing plates on degradable pharmaceutical packaging film are as follows:

A printing plate for degradable pharmaceutical packaging film must have a certain hardness. Because printing processes vary, the required surface hardness of the plate also differs.

The surface Shore hardness of the printing plate used to print degradable pharmaceutical packaging film is

For the printing plate used on degradable pharmaceutical packaging film, the four corners should be even and the thickness uniform; the relief depth of the plate surface should be

approximately, while fine text and small gaps should have a certain depth.

The printing plate for degradable pharmaceutical packaging film should have accurate graphic and text dimensions, correct color separation plates, and flat feet in the recessed areas.

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