chrome free leather presentation
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It really MATTER to us,green process.TRANSCRIPT
Cr-FREE (FOC) LEATHERS
Cr-FREE (FOC) LEATHERS
QINGDAO YOUNGCHANG INL’T LEATHER CO., LTD.
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Cr-Free….. Some FactsCr-Free….. Some Facts- Sensitive to environmental issue and
health.
- Some countries in EU have already banned using chemicals including Formaldehyde and heavy metals.
- Since 1994, use of azo-amine contained dyestuffs has been banned for the products direct intact with the skin.
- More demands on environmental friendly raw materials and consumers are already familiar with the terminology.
★ Wet White (comparing with Wet Blue)
A : No heavy metals or aluminum salts
B : No Chrome except Al, Zr, Ti
★ FOC : Free of Chrome A : No heavy metals or aluminum salts B : No Chrome except Al, Zr, Ti
★ Organic Tannage No : Heavy metals or aluminum salts Yes : Synthtic & Vegetable Tanning agent Acrylic Polymers Aldehydes Auxiliaries Iron (contained in dyestuff)
What is Cr-Free Leather ?
What is Cr-Free Leather ?
○ No Chrome VI & minimal Chrome III
○ No Mineral tanning (Al, Cr, Ti, Zr)
○ Minimal Formaldehyde.
○ Minimal PCP
○ No Azo Amine dyestuffs
*** Young Chang’s FOC leathers are currently supplying to HONDA, VOLKSWAGEN and REEBOK
Young Chang’s FOC LEATHERS
Young Chang’s FOC LEATHERS
Automotive: (Seat Trim Cover, Steering wheels) - Europe: Increase of demand
- North America: Starting to concern - Asia: Starting to concern
Upholstery: Differentiate products from competitors
Garment: Differentiate products by advertising “environmental friendly products”
Shoe Upper: - Avoid ’Cr ALLERGY’ for infants sensitive skin
- High concerns on environmental friendly issues
Application of FOC LEATHERS
Application of FOC LEATHERS
010203040506070
NAFTA EUROUA ASIA SOUTHAFRICA
SOUTHAMERICA
WORLD
Global Production Wet Blue vs. Wet White
Wet BlueWet White
Automotive Leather (2000)
Advantages of FOC LEATHERS
Advantages of FOC LEATHERS
Environmental Aspects • Chrome(Ⅵ): Carcinogenic & allergy factor • Chrome (III) Chrome (Ⅵ) when burning Chrome leather • FOC leaves no harmful toxic substances or residues
Regulation Aspects • EU: Leather Scraps Manufacturer recovers & recycles (95% Recycle) • Chrome contents in Wastewater
Marketing Aspects• Differentiate the products from the conventional
Physical Properties Aspects • Low heat shrinkage (3~5%) • Low wrinkle shrinkage • Low flammability • Low load-stretching • Low stiffening by standing long periods • High heat resistance
Comparison of Cr vs. FOC LEATHERS
Cr LEATHER
FOC LEATHER
Tanning Agent* Chrome (III) - Minerals from the nature found by mining
* Aldehyde - Non mineral material
- compatible by combination
* Vegetable - from the wood & vegetables
Manufacturing Aspects
* Shaving Waste - Required disposal by authorized dumping institutes
* Wastewater & Sludge - Special treatment required for separating chrome in the wastewater
* Shaving Waste - recycled
* No Chrome in wastewater - COD increase during treatment - Manufacturing cost increase
Consumer Aspects
* Special treatment required for disposal - Toxic chemicals during burning
* Stiffening after time
* Easy disposal by burning or grinding* Less stiffening
Weakness of FOC LEATHERS
• Low tightness, especially at higher thickness and at the flanks
• Uneven milling breaks• Weak pigmentation, whiteness, white in the cut• Weak fixation of all anionic materials(fat liquors, syntans!)• Weak dye fixation• Weak fastness properties, e.g. - Light fastness - Perspiration fastness - Rub fastness• Weak Water resistance, water repellent leather