Can greaseproof paper be printed?

Greaseproof Paper can be printed and is one of the core printing substrates for paper products such as disposable paper cups and food packaging bags. Its printing process needs to be adjusted according to the characteristics of greaseproof paper (e.g., surface smoothness, ink absorption, and oil-resistant coating composition) to ensure printing clarity, adhesion, and food safety.

I.Core Premise for Printing on Greaseproof paper: Compliance with Food Contact Standards

Greaseproof paper paper is mostly used in food packaging scenarios. Printing must meet food contact material safety regulations (e.g., China's GB 4806.8, US FDA , EU ). Key requirements include:

Ink Selection: Must use food-grade inks, preferably water-based inks, soy-based inks, or UV-curable inks. Industrial inks containing heavy metals (lead, cadmium), benzene derivatives, or plasticizers are prohibited.

Printing Surface Restrictions: If the greaseproof paper is single-side coated with an oil-resistant layer, printing must be performed on the non-food contact surface; if double-side printing is required, the ink on the food contact surface must pass migration tests.

II.Key Technical Points for Printing on Greaseproof Paper

Surface Pretreatment

Some Greaseproof papers have a smooth surface and low surface tension, leading to poor ink adhesion. Corona treatment is required to increase surface tension (generally 38-42 dynes/cm) or apply a layer of water-based primer to enhance the bonding force between ink and paper.

Drying and Curing Control

After printing, inks must be thoroughly dried via hot air drying, UV curing, or other methods to prevent ink blocking and migration. For food-grade inks, the drying temperature should be controlled at 60-80℃ to avoid damaging the oil-resistant performance of the paper due to high temperatures.

Rub Resistance Test

Finished printed products must undergo a rub resistance test (complying with GB/T 7706 standard) to ensure patterns do not peel off during subsequent processing (e.g., paper cup die-cutting, forming) and use.

III. Typical Application Scenarios

Printing on greaseproof paper is widely used for outer patterns of disposable paper cups, food greaseproof paper bags (e.g., hamburger bags, french fry bags), and brand logos on Baking Oil Paper. It meets both aesthetic needs and food contact safety requirements.

Would you like me to compile a list of common quality issues and solutions for printing on greaseproof paper, such as troubleshooting methods for ink peeling and blurred patterns?