TANIGAN®

Bisphenol optimized syntans for high leather quality

Addressing the very latest regulatory challenges

The Background

The Background TFL is a leading global manufacturer and supplier of high quality syntans that are recognized worldwide with the famous brand names of SELLATAN® and TANIGAN®.To maintain this lead TFL continually invest in pioneering research, development and extensive application support to keep you at the cutting edge of the very latest technological advances.ECHA has published the restriction draft on bisphenol A and other bisphenols of similar Concern (BPA and BosC; including BPS/BPF) and now the consultation phase begins for a minimum of 12 months. After finalization the restriction draft foresees that other (non-leather) industries using bisphenols will need to reduce BPA and BosC

traces to 10 mg/kg or less within 18 months (2025 earliest) while leather will have an additional 5 years at 500 mg/kg or less (to 2030). There are a few points in the restriction draft that will need further clarification and TFL together with key partners will follow up on those topics and keep customers updated. TFL, as a global leader in chemicals for leather production, had immediately started to develop products to address this new challenge once it became public. TFL has already launched an indispensable range of genuine syntans that enable customers to manufacture leathers that will comply to upcoming threshold of 500 mg/kgof bisphenols, all developed, manufactured and strictly controlled within TFL’s own facilities. This invaluable new range of syntans facilitate the production of the vast majority of leather articles and ensure the required leather properties and fastnesses are attained. This new range includes:

• TANIGAN® BN-O Liq,
• TANIGAN® RL-O Liq, TANIGAN® LF-O Liq,
• TANIGAN® FA-O Liq, TANIGAN® VR-O Liq and
• TANIGAN® DS-O Liq.

Thanks to this experience and competence TFL is particularly well positioned to continue successful research to ensure customers can also meet any future regulatory requirements with their processes and articles. Please keep in mind that the vast majority of TFL’s comprehensive wet end retanning products portfolio is completely free of BPS and BPF under the following well-known trade names: RETINGAN®, MAGNOPAL®, LEVOTAN®, BLANCOROL®,

TANNESCO®, DRYWALK®, LEUKOTAN™, LUBRITAN™ (and most of SELLASOL®) of course along with all TFL fatliquors and dyestuffs etc.

TANIGAN® BN-O Liq

The ideal replacement syntan for very soft and round leather with a high degree of filling and excellent tanning

• very low residual monomer content, including free formaldehyde and BPS / BPF (<0.1 %)
• good milling performance

TANIGAN® LF-O Liq

The ideal syntan for tight, flat “not plumped” smooth grain leather articles

• very low residual monomer content, including free formaldehyde and BPS / BPF (<0.05 %)
• high degree of whiteness with very good light fastness

TANIGAN® DS-O Liq

Syntan with pronounced dispersing properties applied in combination with other syntansand vegetable tannins

• very low residual monomer content, including free formaldehyde and BPS / BPF (<0.05 %)
• treated leather is firm, with a fine tight grain due to low astringency, with full round handle

TANIGAN® RL-O Liq

Syntan for very soft, round and full leather with excellent tanning properties

• very low residual monomer content, including free formaldehyde and BPS / BPF (<0.1 %)
• treated leather has good degree of whiteness and light fastness with moderate heat yellowing

TANIGAN® FA-O Liq

The ideal product for firm, compact and tight leather articles

• very low residual monomer content, including free formaldehyde and BPS / BPF (<0.05 %)
• 49 % bio-content
• highly suitable for retanning waterproof articles e.g., military or Timberland type

TANIGAN® VR-O Liq

The ideal syntan for milling, combines tightness with good filling and softness

• very low residual monomer content, including free formaldehyde and BPS / BPF (<0.05 %)
• 24 % bio-content
• good fastnesses to light and heat thus recommended for automotive articles