- What is levelling agents and what are functions of levelling agentsLevelling agents are chemical compounds that are used in textile processing to improve the evenness and consistency of dye or pigment uptake on fabric. These agents help to achieve uniform dyeing or printing by reducing the difference in dye or pigment uptake between different areas of the fabric. The functions of levelling agents include:
- Promoting even dye or pigment penetration: Levelling agents help to promote even dye or pigment penetration throughout the fabric, resulting in a uniform color or print.
- Preventing uneven dyeing or printing: By promoting even penetration, levelling agents help to prevent uneven dyeing or printing, which can lead to undesirable blotches or streaks in the final product.
- Reducing color migration: Levelling agents can help to prevent the migration of color between fibers or yarns, which can cause color bleeding or unevenness in the final product.
- Improving color fastness: By promoting even dye or pigment uptake, levelling agents can help to improve color fastness, making the color more resistant to fading or washing.
- Enhancing surface smoothness: Levelling agents can help to enhance the surface smoothness of the fabric, improving its hand feel and overall appearance.
- This leveling agent reduces the rate of dyeing of dispersing dyes in the heating phase
- Leveling agents remains fully effective in presence of other dyeing chemicals and does not impair their properties.
- Leveling agents has good electrolyte stability
- Leveling agents Contains no carrier
- This leveling agent produces high surface levelness
- Additionally, This leveling agent aids dispersion of the dyebath
- This leveling agent is solvent based
- Leveling agents ensures uniform build-up of disperse dyes at lower temp. in the range of 98 to 120˚C for polyester and blends, where high temp. adversely affects the substrates like spandex, wool etc.
- This leveling agent is highly efficient relevelling agent for dyeing of polyester with disperse dyes to ensure uniform dyeings.
- Leveling agents produces brighter shades.
- Leveling agents has no adverse effect on light fastness
- This leveling agent Helps disaggregation and dispersion of dyestuff and precipitating salts, improving dyebath stability.
- Leveling agent Buffer action prevents shock during the alkali phase and ensures uniform fixation.
- Leveling agent Controls the strike rate in the adsorption phase leading to level dyeing.
- Leveling agent Increases yield and improves reproducibility of dyeings produced with dyes sensitive to calcium and magnesium present in water, salt, fabric etc.
- Leveling agent Improves dyestuff solubility.
- Leveling agent Optimizes reproductibility of results: No adverse effect on dye dispersion hence no dye agglomeration & no quality problems with stains and specks. Dyed shades are level and more even appearance of goods.
- Very good dispersing effect on disperse dyes: Additional use of dispersing agent is not necessary.
- Leveling agenthas minimum or no retarding effect: Best dye yield and high reproducibility of results because the leveling of dyed shades occur through synchronization & migration.
- Leveling Agenthas Dye Dispersion Stability
- Leveling Agent eliminates the dye aggregation in dye bath even at 140oC and avoids dye spots
- Less surface deposition of unexhausted dye and hence improved fastness Levelling
- uniform dyeing
- Leveling agent helps compensate for lack of compatibility of dyes in mixtures used because of economy or particular fastness properties.
- improved ‘Right-First-Time’ dyeing and increased productivity.
- No Retarding
- full shade and minimum loss of dye in bath
- Oligomer dispersion
- no unwanted deposition both on fabric and machine surface.