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Send EmailLeather Chemical, Leather Oil, Sulphite Fish Oil, Phosphoric Ester, Lecithin Based Combined Oil, Synthetic Oil
Leather fatliquors are chemical formulations used to impart softness, flexibility, fullness, and water resistance to tanned leather. These products penetrate between leather fibers to provide lubricating effects and improve the mechanical properties of leather.
| Product Type | Base Component | Key Property | Main Application Area |
|---|---|---|---|
| Synthetic Oil | Petrochemical derivatives, synthetic esters | High stability, non-discoloring, homogeneous penetration | All leather types, especially light-colored leathers |
| Combined Oil | Blend of natural and synthetic oils | Balanced performance, good emulsion properties | Versatile use, general finishing |
| Sulfited Fish Oil | Sulfited fish oil | Softness, fullness, good lubrication | Garment leather, suede, nubuck |
| Phosphoric Ester | Phosphoric acid esters | EP/ES properties, emulsifying, anti-corrosion | Industrial leathers, heavy-duty applications |
| Lecithin-Based Combined Oil | Lecithin + natural/synthetic oils | Odorless, heat-resistant, superior softness | Upholstery leather, footwear, garments |
| Property | Synthetic Oil | Combined Oil | Sulfited Fish Oil | Phosphoric Ester | Lecithin-Based Combined |
|---|---|---|---|---|---|
| Emulsion Stability | High | Medium-High | Medium | High | High |
| Softness Effect | Medium | High | Very High | Medium | High |
| Fullness Effect | Medium | High | High | Low-Medium | High |
| Lubrication Quality | Good | Good | Excellent | Excellent (EP) | Excellent |
| Odor | None | Mild | Fishy (treated) | None | None |
| Heat Resistance | High | Medium | Low-Medium | High | High |
| Discoloring Effect | None | Low | Medium | None | None |
| Migration Resistance | High | Medium | Low | High | High |
| Biodegradability | Low | Medium | High | Low | High |
| Parameter | Information |
|---|---|
| Chemical Structure | Petrochemical derivatives, synthetic esters, sulfated synthetic oils |
| Physical State | Liquid (various viscosities) |
| pH (Emulsion) | 5.0-8.0 (varies by type) |
| Emulsion Property | Easily emulsifiable with water |
| Advantages | - Non-discoloring, suitable for light-colored leathers - High stability - Homogeneous penetration - Long shelf life |
| Application Areas | All leather types, especially light-colored and sensitive leathers |
| Parameter | Information |
|---|---|
| Chemical Structure | Blend of natural (vegetable/animal) and synthetic oils |
| Physical State | Liquid, paste |
| Emulsion Property | Good emulsification, homogeneous distribution |
| Advantages | - Combination of natural and synthetic advantages - Balanced performance - Versatile use |
| Disadvantages | - Less stable than synthetic oils - Variability due to natural components |
| Application Areas | Garment leather, upholstery leather, footwear leather |
| Parameter | Information |
|---|---|
| Chemical Structure | Sulfited fish oil (modified by sulfitation process) |
| Physical State | Liquid (dark amber color) |
| pH (Emulsion) | 6.0-8.0 |
| Emulsion Property | Good dispersion in water |
| Advantages | - Superior softness and fullness - Deep penetration into leather fibers - Excellent lubrication |
| Disadvantages | - Characteristic fishy odor (reduced by processing) - Low heat and migration resistance - May degrade under UV exposure |
| Application Areas | Suede, nubuck, garment leather, soft leather types |
| Parameter | Information |
|---|---|
| Chemical Structure | Mono- and di-esters of phosphoric acid and alcohols |
| Physical State | Liquid (clears at 40-45°C in acidic form) |
| Acid Value | 180-200 mg KOH/g |
| pH Stability | Stable over full pH range |
| Emulsion Property | Forms dispersion in water |
| Advantages | - Excellent EP (Extreme Pressure) properties - Emulsifying and detergent properties - Anti-corrosion properties - Stable over full pH range |
| Application Areas | Industrial leathers, heavy-duty applications |
| Parameter | Information |
|---|---|
| Chemical Structure | Lecithin (phospholipid) + natural and/or synthetic oils |
| Physical State | Light yellow paste |
| Emulsion Property | Easily emulsified and dispersed in cold and warm water |
| Odor Property | Provides odorless finish |
| Advantages | - Superior softness and fullness - Odorless finish - Excellent heat and migration resistance - Deep penetration into leather fibers and homogeneous distribution |
| Application Areas | Upholstery leather, footwear upper leather, garment leather, suede leather |
| Product Type | Mechanism of Action | Imparted Properties |
|---|---|---|
| Synthetic Oil | Homogeneous penetration between leather fibers, molecular-level lubrication | Softness, flexibility, surface gloss |
| Combined Oil | Synergistic effect of natural and synthetic components | Balanced softness and fullness |
| Sulfited Fish Oil | Long-chain fatty acids wrapping around fibers | Excellent softness, superior lubrication, water repellency |
| Phosphoric Ester | Protective layer on metallic surfaces through phosphate group | EP/ES properties, abrasion resistance, corrosion protection |
| Lecithin-Based Combined Oil | Binding to fibers through phospholipid structure of lecithin | Superior softness, fullness, heat resistance, migration prevention |
| Product Type | Dosage (Based on Leather Weight) | Application Conditions | Notes |
|---|---|---|---|
| Synthetic Oil | 2-6% | 45-55°C, 30-60 minutes | Applicable to all leather types |
| Combined Oil | 3-8% | 45-55°C, 30-60 minutes | Dosage should be adjusted according to leather type |
| Sulfited Fish Oil | 4-10% | 45-50°C, 45-90 minutes | Higher dosage for soft leathers |
| Phosphoric Ester | 1-5% | 45-55°C, 30-60 minutes | Can be used with emulsifiers |
| Lecithin-Based Combined Oil | 2-8% | 45-50°C, 30-60 minutes | Can also be applied in cold water |
| Sector / Application | Synthetic | Combined | Sulfited Fish | Phosphoric Ester | Lecithin Combined |
|---|---|---|---|---|---|
| Garment Leather | Medium | High | Very High | Low | High |
| Upholstery Leather | High | High | Medium | Medium | Very High |
| Footwear Leather | High | High | High | Medium | High |
| Suede/Nubuck | Low | Medium | Very High | Low | High |
| Industrial Leather | High | High | Low | Very High | Low |
| Automotive Leather | High | High | Low | Medium | Very High |
| Parameter | Typical Specification |
|---|---|
| Appearance | Clear to slightly turbid liquid |
| pH (10% Emulsion) | 5.0-8.0 |
| Oil Content | 60-85% |
| Emulsion Stability | Stable for 24 hours |
| Parameter | Typical Specification |
|---|---|
| Appearance | Dark amber colored liquid |
| pH (10% Emulsion) | 6.0-8.0 |
| Oil Content | 55-75% |
| Saponification Value | 180-220 mg KOH/g |
| Parameter | Typical Specification |
|---|---|
| Appearance | Clear or slightly turbid liquid (at 40-45°C) |
| Acid Value | 180-200 mg KOH/g |
| pH (5% Solution) | 2.0-3.0 |
| Parameter | Typical Specification |
|---|---|
| Appearance | Light yellow paste |
| Emulsion Property | Easily emulsified in cold/warm water |
| Odor | Odorless |
| Product Type | Storage Temperature | Shelf Life | Special Warnings |
|---|---|---|---|
| Synthetic Oil | 5-35°C | 12-18 months | Protect from freezing |
| Combined Oil | 10-35°C | 12 months | May require homogenization |
| Sulfited Fish Oil | 10-30°C | 12 months | Protect against oxidation |
| Phosphoric Ester | 10-40°C | 24 months | Store below 40°C |
| Lecithin-Based Combined Oil | 5-30°C | 18-24 months | Store in cool, dry place |
| Product Type | Environmental Classification | Toxicology Notes |
|---|---|---|
| Synthetic Oil | Low biodegradability | May cause skin irritation |
| Combined Oil | Medium biodegradability | Generally low toxicity |
| Sulfited Fish Oil | High biodegradability | Possible allergic reactions |
| Phosphoric Ester | Low biodegradability | Acidic, may cause skin irritation |
| Lecithin-Based Combined Oil | High biodegradability | Low toxicity, environmentally friendly |
| Requirement | Recommended Product |
|---|---|
| Maximum softness and fullness | Sulfited Fish Oil or Lecithin-Based Combined |
| No odor in finished leather | Lecithin-Based Combined or Synthetic Oil |
| Light-colored leather | Synthetic Oil |
| Heavy-duty/industrial applications | Phosphoric Ester |
| Balanced performance and cost | Combined Oil |
| Automotive/upholstery applications | Lecithin-Based Combined |
| Suede/nubuck applications | Sulfited Fish Oil or Lecithin-Based Combined |
| Heat resistant applications | Synthetic Oil or Lecithin-Based Combined |
The information provided in this document is based on our current knowledge and experience and is presented in good faith; however, as all conditions of use are beyond our control, it does not constitute a binding specification or warranty. This Technical Data Sheet is for informational purposes only. Users are responsible for testing the suitability for their own applications. For complete safety, storage, use, handling, disposal, and regulatory compliance information, please refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier.