Common problems and solutions for printing and packaging

1) Color deviation: There is a color difference between the printed product and the design draft or customer sample.

Solution: Use a color management system (CMS) to ensure color consistency; calibrate printing equipment and materials regularly; use color value detection instruments. Adjust the color of the file before publishing.

Influence of environmental factors: Changes in temperature and humidity affect the color and physical properties of printed products.

Solution: Control the temperature and humidity of the printing environment; use adaptable materials and inks; and perform appropriate post-processing on printed products.

2) Poor hot stamping: Foil shedding and unclear patterns occur during hot stamping.

Solution: Select suitable hot stamping materials and processes; adjust the temperature and pressure of the hot stamping equipment; perform sample testing before hot stamping. Test the quality of the hot stamping plate, etc.

3) Die-cutting process problems:

Insufficient die-cutting accuracy

Reason: Die-cutting plate manual production error, paper deformation (such as temperature and humidity changes after glazing/lamination), improper equipment debugging.

Solution: Use high-precision die-cutting plate production process (such as laser cutting);

Ensure that die-cutting and printing are carried out under the same temperature and humidity environment, or pre-treat the paper to reduce deformation; optimize the equipment baseline calibration and fine-tuning mechanism

4) Color Box edge or corner burst

Reason: low paper moisture content, uneven die-cutting pressure, poor material folding resistance.

Solution:

- Control the moisture content of the mounting paper (10%-14%), and moisturize it through a wet roller or laminating process;

- Optimize the indentation groove design (width = paper thickness × 1.5 + steel wire thickness);

- Select folding-resistant coating or laminating materials.

5) Paper Box deformation

Reason: Die-cutting indentation is too shallow, adhesive moisture content is high, and storage environment is humid.

Solution:

- Deepen the indentation depth and calibrate the die-cutting plate accuracy;

- Use low-water content adhesives to control workshop humidity.

6) Design and file issues: design files have low resolution, incorrect format, or do not consider printing processes.

Solution: Work closely with designers to ensure that designs are suitable for printing; use professional prepress software to check and correct files.

7) Insufficient operator skills: Printing quality is unstable due to lack of training or experience of operators.

Solution: Regularly train operators in skills; establish standardized operating procedures; encourage continuous learning and skill improvement.

I have been engaged in the printing and packaging industry for more than 10 years. If you want to know other related issues about printing and packaging, please contact zhshprint@hotmail.com.