Common problems and solutions of using water-based ink printing for plastic woven bags
Date: Jul 03 2023 From: Star Color
When using water-based ink printing for plastic woven bags, there are several common problems that may arise. Here are some of those problems along with their potential solutions:
1.Ink Adhesion Issues: Water-based inks may not adhere properly to the surface of plastic woven bags, leading to poor print quality and smudging.
Solution: Ensure that the plastic surface is properly prepared before printing. Clean the surface thoroughly to remove any dust, dirt, or oils that may hinder ink adhesion. Additionally, consider using a primer or adhesion promoter specifically designed for plastic substrates to enhance ink adhesion.
2.Bleeding or Feathering: Water-based inks can sometimes bleed or feather, causing the printed image to appear fuzzy or spread out.
Solution: Use a higher-quality ink with good bleed resistance. Test different ink formulations to find the one that provides the best results on plastic woven bags. Additionally, consider using a lower mesh count screen or adjusting the printing parameters to minimize ink spread.
3.Drying Time: Water-based inks typically require longer drying times compared to solvent-based inks. This can lead to smudging or sticking issues, especially in high-speed printing operations.
Solution: Optimize the drying process by ensuring proper air circulation and ventilation in the printing area. Increase the drying time between color layers or consider using forced-air dryers or infrared curing systems to expedite the drying process.
4.Color Vibrancy and Opacity: Water-based inks may exhibit lower color vibrancy and opacity on plastic substrates, resulting in a less visually appealing print.
Solution: Select high-quality water-based inks that are specifically formulated for printing on plastics. Test different ink formulations to find those that offer the best color vibrancy and opacity. Consider using additional layers or higher ink deposition to improve color saturation.
5.Durability and Resistance: Water-based inks may be less durable and less resistant to factors like abrasion, chemicals, and moisture compared to solvent-based inks.
Solution: Apply a clear protective coating or varnish over the printed surface to enhance durability and resistance. Consider using specialized water-based inks that offer improved resistance properties, such as UV-resistant or water-resistant formulations, depending on the specific requirements of the plastic woven bags.
It's important to note that the specific problems and solutions may vary depending on the ink brand, substrate material, printing equipment, and other factors. It's recommended to consult with ink and equipment manufacturers, conduct thorough testing, and fine-tune the printing process to achieve optimal results for water-based ink printing on plastic woven bags.
RU
EN
CN
