Causes of delamination of CPP ink

What is CPP ink?

CPP ink (Full name: Chlorinated polypropylene ink), is an ink whose main component is chlorinated polypropylene resin. CPP ink is widely used in packaging, decoration, printing and other fields.

Causes of delamination of CPP ink

Ink delamination is caused by the following factors:

1. Ink ingredients: The selection and ratio of pigments, resins and solvents in the ink will affect the stability of the ink. If the ingredients are improperly selected or the ratio is unreasonable, the ingredients in the ink may separate from each other, resulting in CPP ink delamination.

2. Ink consistency: Ink consistency refers to the viscosity and fluidity of the ink. If the consistency of the CPP ink is too high or too low, it may cause ink delamination. A consistency that is too high will prevent pigments and resins from being evenly dispersed, while a consistency that is too low may cause components to separate.

3. Ink emulsification: The emulsification between the moisture in the ink and the ink components may also cause ink delamination. If the moisture in the CPP ink cannot mix well with the ink components, delamination will occur.

4. Storage conditions: The storage conditions of the CPP ink will also affect the stability of the ink. If the ink is exposed to high or low temperatures or moisture for a long time, it may cause ink delamination.

In general, CPP ink delamination is caused by factors such as ink composition, ink consistency, ink emulsification and storage conditions. Reasonable selection of ingredients, controlling consistency, promoting emulsification, and providing appropriate storage conditions can reduce the occurrence of ink delamination.