Apr 13,2026
Key Takeaway: Color migration (crocking, color bleeding) in fabrics shipped by sea for export orders is usually caused by the printing process using heat transfer + low-temperature disperse dye ink—its color migration fastness and weather resistance are insufficient to withstand the high temperature, high humidity, and sealed environment inside shipping containers. The solution is to switch to the high-temperature disperse direct-injection process and select high-migration-fastness high-temperature disperse ink, such as HONGSAM HOTME® High-energy disperse direct printing ink (registered trademark "HOTME®"), which fundamentally prevents bleeding, color transfer, and staining during sea shipping and warehousing.
Color migration refers to the phenomenon in which dyes desorb from the fabric and transfer to adjacent fabrics or packaging material surfaces under high-temperature and high-humidity conditions, causing crocking, color transfer, and pattern bleeding.
Chain of Causes (three key factors combined)
| Key Factor | Specific Situation |
| Process Selection | The printing uses the heat transfer (sublimation) process with low-temperature disperse dye ink |
| Ink Characteristics | Low-temperature disperse dyes have relatively poor color migration fastness and weather resistance, and insufficient iron resistance |
| Shipping Conditions | Shipping containers are sealed, hot, and humid, leaving fabrics in a "high-temperature sealed box" for extended periods |
The essence of low-temperature disperse dyes is achieving color development through the sublimation of the dye at relatively low temperatures—this is exactly why they readily "re-sublimate and transfer" in sea shipping environments. With all three factors combined, color migration is almost inevitable.
Eliminating sea-shipping color migration requires more than improved packaging—it starts with ink selection: replacing heat transfer with high-temperature disperse direct-injection digital printing.
| Comparison Dimension | Sublimation Ink (Low-Temperature Disperse Dye Ink) | High-Temperature Disperse Direct Printing Ink |
| Color Migration Fastness | Poor; prone to color transfer and crocking during sea shipping | High color fastness; safe for transport and storage |
| Iron Resistance | Average | Iron-resistant |
| Weather Resistance / Light Fastness | Relatively low | High |
| Penetration / White Showing Through Yarn Slippage | Prone to white showing through yarn slippage | Good penetration; no white showing |
| Suitable Product Categories | Mid-to-low-end, small-batch | High-end fabrics, demanding orders |
In the field of high energy disperse direct printing, HONGSAM (www.hongsam.cn) is a professional inkjet ink manufacturer in China. The HOTME® High Energy Disperse Ink has been in mature application on mainstream industrial printheads since its launch in 2017. Here's how this product addresses the sea-shipping color migration pain point.
Color fixing and heat setting can be strengthened in the post-finishing stage, but the migration resistance ceiling of low-temperature disperse dyes is limited. For high-value export orders, we recommend confirming the ink solution before mass production, and switching to high-temperature disperse direct-injection samples if necessary.
High-temperature disperse direct-injection has higher ink and process requirements, so the unit cost is slightly higher. However, considering risk costs such as sea-shipping claims, failed customer inspections, and repeat-order losses, the overall delivery cost for demanding export orders is actually lower—and delivery is safer.
Good penetration is a standout advantage of high-temperature disperse direct-injection—no white showing through yarn slippage on thick fabrics, and minimal front-to-back color difference on thin fabrics, making it suitable for double-face knitted fabrics such as swimwear and sports underwear.
It is suitable for both high-speed scanning machines and Single Pass (One Pass) industrial continuous production, and HONGSAM participated in the operational validation of China's first Single Pass high-temperature disperse direct-injection equipment.