Step 10 of Dyeing and Finishing: Second Round of Boiling Gambiered Guangdong Silk
After the preliminary complex dyeing and finishing treatments (including 6 applications of gambier fluid, 6 sealings with gambier fluid, 2 sealings with hot gambier fluid, and 12 sealings with gambier fluid at room temperature combined with sun-drying, totaling 26 dyeing and finishing processes), the shade and saturation of the gray gambiered Guangdong silk have reached approximately 90%.
To ensure optimal results for the subsequent critical process—"Guo Wu" (mordanting)—the gray silk must undergo a second round of boiling.
The parameters for the second boiling process are as follows:
Method: Four Passes Water (i.e., the highest concentration of gambier fluid).
Water Temperature: 50°C - 60°C.
Boiling Duration: 4 - 5 minutes.
After this boiling process, the weight of the gray silk is reduced by approximately 12%.
What is "Four Passes Water"?
"Four Passes Water," also known as dregs water, has been explained in previous content. For details, please refer to the original post by clicking the image below.
NALANGE CHRONICLES
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