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Synthetic Tanning Agents Syntans help stabilize the skin substance against bio and chemical degradation. By modifying the collagen structure, syntans enhance the leather strength properties and reduce its ability to swell. SNF syntans are modified acrylic polymers used for the tanning and retanning of all types of leather.
Resin Tanning Agents SNF resin syntans are based on Melamine-formaldehyde polymer from low to very low level of residual formaldehyde.
Synthetic Retanning Agents Retannage step improve the use value of modern types of leather. Re- tanning agent help to adjust the character of the leather and improve its quality. The softness, the tightness and the fullness are some of the different characteristic which can be improves with SNF polymer. In addition some specific performances like the improvement of dye ex- haustion during the dyeing step can be also improved thanks to the use of some SNF retanning agent. SNF product for retanning are modified acrylic polymers and can be used to treat all type of leather. Due to their acrylic chemistry these product possess a high lightfastness.
• Improves the leather fullness • Improves the grain tightness
Tanning and Retanning Agents
and buffability • Improves dye performance
• Improves the fullness of retanned leather
SNF is the leader in the manufacturing of water soluble polymers for water treatment and offers a wide range of flocculants, coagulants and other water treatment chemicals such as antifoams, scale inhibitors and chelating agents.
Salmon aspect embossed cobalt blue dye on full grain leather.
Water Treatment
• Better washfastness • Better colour depth
FLOFIX Fixing Agents Fixing agents are used to enhance the colour of the leather, its washfas- tness and perspiration resistance. SNF produces specific fixing agents for both processes.
° Drum Dyeing FLOFIX are high performance cationic fixing agents for anionic dyes. FLOFIX enhances washfastness and perspiration resistance. FLOFIX are also used to reverse the charge of the dye and deeper its shade, especially black.
FLOLINE Lubricants In the wet processes of leather production lubricants are used to reduce friction. SNF produces specific lubricants perfectly adapted to leather production processes.
FLOLINE high molecular weight, water soluble polymers are used to reduce friction. They minimize the tendency to tangling and knotting. They also reduce the risk of pieces of material being torn off and prevent abrasion marks being formed especially when processing in short floats.
FLOSPERSE Dispersants FLOSPERSE products are used to improve the distribution of tanning and retanning agents as well as disperse dyes to reach brilliant level shades.
FLOFOAM Defoamers To meet the needs of its municipal and industrial customers, SNF offers a wide range of liquid antifoams from different chemistries : ° Silicon based ° Oil based ° Dispersions ° Emulsions
SNF’s technical assistance team provides the expertise to select the right chemistry, the right injection point, thus optimising the cost of treatment.
• Reduce friction • Improve abrasion resistance • Prevent marks
• Disperse tanning agents • Disperse dyes
Tanning and Drum Dyeing Auxiliaries
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While SNF makes reasonable efforts to ensure the information is accurate and up-to-date, SNF makes no warranties or representations, express or implied, as to the accuracy, completeness, or any other aspect of the information on this document and assumes no liability in connection with any use of this information. Nothing herein shall be construed as a recommendation or license to use any information found that conflicts with any patent, trademark or copyright of SNF or others, and SNF makes no representations or warranties, express or implied that any use of this information will not infringe any such patent, trademark or copyright.
SNF (CHINA) FLOCCULANT Co. Ltd. Taixing economic development zone West of Tongjiang road Taixing City Jiangsu Province 225442 CHINA Tel : +86 523 767 6300 Fax : +86 523 767 6430 e-mail : [email protected] web : www.snfchina.com
SNF HOLDING Co. PO Box 250, 1 Chemical Plant road Riceboro, Georgia 31323 UNITED-STATES Tel : +1 912 884 3366 Fax : +1 912 884 5031 e-mail : [email protected] web: www.snf.us