Analysis of the phenomenon of poor overprinting of offset printing ink

Phenomenon: One color pigment cannot adhere to the previous color or several colors in multi-color printing

Causes and Measures

1. Incorrect ink viscosity order: reduce poor transfer of ink viscosity;

2. Follow-up color group ink is too sticky: change the printing color sequence; 3. Because the interval between two printing is too long, the ink is too firm: shorten the printing time interval, increase the viscosity of the overprint ink; add special ink to soften the overprint ink. Agent; if necessary, overprint with a colorant to soften the first color pigment;

4. Too much desiccant: little or no desiccant;

5. Excessive dusting: Use as little dust as possible.

Office Chair

1. Work chair: This is the most common type of office chair designed for use on a desk or computer. They usually have adjustable height, backrest, and armrests, and are usually mounted on wheels for easy movement.


2. Executive chair: These chairs are larger and more luxurious than task chairs, with higher backrests and more padding. They are usually made of leather and have more advanced functions such as tilting and tilting. Suitable for high-level personnel in various offices.


3. Conference chair: These chairs are designed for use in conference rooms and are usually lighter and more stackable than other office chairs, making it easier to decorate the venue. They may have adopted a more minimalist design and come with a writing pad.


4. Ergonomic chair: These chairs are designed to provide users with maximum comfort and support, with lumbar support, adjustable armrests, and tilt functions. They can alleviate the discomfort caused by long-term sitting for users, and are usually recommended for those who sit at their desks for a long time.




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