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Dyeing & Finishing
Dyeing processes by fibre, process flowcharts, dye types and finishing.
48 guides
Dyeing Lab
Lab dips, shade matching, recipes, colour measurement and lab-to-bulk.
Coming soon
Testing
Colour fastness, shrinkage, GSM, pilling and chemical tests.
12 guides
Fabric Development
Real knit development records, test report insights and data studies.
1 guide
Defects & Troubleshooting
Causes and proven fixes for dyeing faults.
9 guides
Home Dyeing
Dye at home with color that lasts: guides and tested products.
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Dyeing basics
How acid dyes work on nylon: ionic bonds, pH and level dyeing
Acid dyes hold to nylon, wool and silk mainly by an ionic bond with the fibre’s amine groups. Here is the mechanism, why nylon saturates and shows barré, and how pH, heating rate and after-treatment give a level, fast shade.
Dyeing basics How disperse dyes work on polyester: 130°C, pH 4.5 and reduction clearing
19 min read
Dyeing basics How reactive dyes work: salt, alkali, fixation and hydrolysis
16 min read
Dyeing basics Dye classes explained: which dye for which fibre, and why
18 min read
Dyeing basics How dyeing works: transport, adsorption, diffusion and fixation
16 min read
Defects & Troubleshooting
All defects →Fix a dyeing fault
Why knit fabric fails fibre content analysis: 8 real cases from 67 lab reports
8 real knit batches that failed fibre content analysis: fibre left off…
Why knit fabric fails the bursting strength test: 6 real cases from 81 lab reports
6 real knit batches that failed bursting strength: light GSM, yarn strength,…
Why knit fabric fails staining in wash, perspiration and water fastness: 9 real cases
9 real knit batches that failed staining in wash, perspiration or water…
Why knit fabric fails the spirality test: 3 real cases from 84 lab reports
3 real knit batches that failed spirality after washing: yarn twist torque,…
