Monday, August 24, 2009

types of leather




Shrunk leather
These are the leather in which a grain shrinking effect is produced on the grain side by highly astringent synthetic tanning agents or line shrinking effect by means of glutaraldehyde or a special grain bubble(which is prominent and larger in size)shrinking effect by combination vegetable and glutaraldehyde tanning. These effects are very firmly fixed by subsequent chrome and are more resistant during use compared to artificial grain.
Raw stock
Cattle hides, calf, sheep and goat skin less frequently buffalo and zebu hides.

Requirements of production
Manufactured in thickness of 1.0-2.2 mm. The stronger and firmer the skin and skin texture, the deeper, more prominent and more even is the effect produced. The shrinking effect is also influenced by the degree of dewatering of the pelt, by the float length and by the duration of treatment.
Uses
Mostly used for leather hand bag. It can also be used for garment purpose.

Patent leather
These are leather with a mirror-bright gloss and with a relatively thick finish coat. Manufactured mainly in cold lacquering processes with polyurethane lacquers, less frequently by lamination.
Raw stock
Cattle hide calf or goat skin and occasionally also cow-hide lower splits.
Requirement of production
Manufactured in thickness of 1.0-2.0 mm. Good adhesion value and a lasting resistance to cracking of the finish coat should be ensured.
Uses
The uses of this type of leather are for ladies footwear and high quality leather garment.

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