1. PT.DAEHWA LEATHER LESTARI
Jun 2002
PT. Daehwa

2. Contents: Company Profile Location Map Capacity and Main Items
Wet Blue(Raw material)
Process Flow Chart
Technical Center
The goal of our company
References
Jun 2002
PT. Daehwa

3. 1. PT.DAEHWA is the tannery producing
finished leather mainly suede split and
PU coated leather from imported wet blue,
and supplies the leather to shoes factory
2. We can deliver to most of the shoes factory in Jakarta or nearby within
2 hours owing to it’s location in Bekasi
3. We are and always have been trying to keep quality as well as price competitiveness by
avoiding the loss in production and proper management to support the shoes industry.
Jun 2002
PT. Daehwa

4. Company Profile : Establishment : 1994 (Start production Jul 1994)
Main Items : Suede Split and PU Coating Leather
Prod Capacity : Total 2,000,000ft2 per month
Land : 15,000 m2
Building : 8,000 m2
Factory Location : Lippo Cikarang Industrial Estate
Bekasi, Indonesia(40 mins from Jakarta)
Employee : Total 195 ( including 5 expatriate)
Contact : PT.Daehwa Leather Lestari
Phone (62-21) (Hunting)
Fax# (62-21)
Jun 2002
PT. Daehwa

5. Bekasi International Industrial Estate
Block C-10 No. 6, Lippo City
Lemahabang, Bekasi 17550
Location
Jun 2002
PT. Daehwa

6. Capacity and main Items
1. Suede Split: 1,000,000 SF / month
SSP : Silky & soft touch(Double dyeing process)
DH-Strongbuck : Short nap based on SSP from Croupon
Wax Top : Special oil treated suede split
2. PU Coating Leather: 1,500,000 SF / month
G-3 series : Very Soft, smooth touch and no orange peel
Nubuck type : Laminate with ready-made PU film (wet process)
HWP : Waterproof action leather
Jun 2002
PT. Daehwa

7. Capacity (1 Shift) Machine No SF/8hrs Remarks
1.Drum Wood 4 30, kg/dm
Stainless 2 32, kg/dm
Pilot 10
2.Shaving 1800mm 2 35,000
600mm 1 5,000 Small size
3.Buffing 1800mm 4 60,000
4.Drying Vacuum 1 20, tables
Hot Plate 9 30,000 2x5m
Toggle 2 50,000
5.Laminate 2000mm 1 40,000 5m/min
Jun 2002
PT. Daehwa

8. Wet Blue as our raw material
To meet constant quality and good fiber structure, we are very careful in choosing and selection of our raw material.
2. We trim the shoulder and the belly
part off to make Croupon(D+E)
which is the best part of the hide
before starting the process,
as shown on the right picture.
Jun 2002
PT. Daehwa

9. Our Resources of Wet Blue
USA
Argentina
China
S Africa
Jun 2002
PT. Daehwa

10. Process Flow Chart Splitting Shaving Wet Blue General Dyeing Drying
Buffing
Laminating
2nd Dyeing
Ageing
PU Coated
Leather
Suede Split
Nubuck
Drying
Inspection
Inspection
Jun 2002
PT. Daehwa
Measuring
Measuring

11. Technical Center A. Laboratory B. R & D Works C. Sample Works Jun 2002
PT. Daehwa

12. A). Laboratory Works 2. Chemical comparison test - For better quality
1. Testing of the leather
- Physical
- Chemical
2. Chemical comparison test
- For better quality
- To achieve price-competitiveness.
3. Check the Qualities in Process
- pH, temperature
- Color & Touch
- Thickness
- etc.
4. Data file
Jun 2002
PT. Daehwa

13. 5. Testing works in Laboratory
Tensile Strength
Crocking fastness
Waterproof
Light fastness Flexibility of the grain
Fat content analysis
Bursting Strength
Abrasion
Softness
Thickness
Other chemical properties of leather
Chemical test
Water pollution test
Jun 2002
PT. Daehwa

14. B). R & D Works 1. Development of new articles
Technical Center
B). R & D Works
1. Development of new articles
- With the help from the chemical
- Chrome free leather.
- Water Transfer System for PU
lamination
- Development of Indonesian hide
- Others & etc.
2. Pre-trial before main prod.
-Color matching & quality test
prior to main application
3. Sample works
- Quick delivery : 3-5days
- Equipment : Sample drum 10
Finishing for sample
4. Sample swatch book room
Jun 2002
PT. Daehwa

15. The goal we are going : 1. Supply the reliable and confident quality
2. Delivery on time
3. Continuous communication with the shoes factories for better and quick after-service.
4. Well organized R&D system to meet
new fashion and demand
5. Integrated QA system to keep the consistent
quality and on time delivery
Jun 2002
PT. Daehwa

16. References 1. What is tanning? 2. Glossary 3. Hide Part Jun 2002
PT. Daehwa

17. What is ‘Tanning’ ?
Term of ‘tanning’ is from the tannic acid of vegetable extracts.
The purpose of tanning:
- Resistant to heat and putrefaction
- Fullness of the leather by filling effect of tanning materials
Kind of tanning :
- Mineral Tanning ; Salts of Chromium, Aluminum and Zirconium
- Vegetable Tanning ; Mimosa, Chestnut
- Aldehyde Tanning ; Glutaraldehyde, Formaldehyde
- Oil Tanning ; Fish Oil
Chrome free Tanning:
Tanning by using tanning material other than
chrome salt. We are trying it continuously with
the help of chemical company to develop the chrome
free leather.
Chrome free leather tested in our Lab.
Jun 2002
PT. Daehwa

18. Glossary (1) Raw Hide : Usually salted or dried condition
Wet Blue : Chrome tanned state
Crust : Leather which has been tanned, fatliquored and dried
but not finished
Finished Leather: Finished and ready for use
Grain : The upper side of the hide with grain(Hair side)
Split : The Lower side of the hide with flesh
Full Grain : This leather possesses the genuine original grain
of the animal
Corrected Grain:The outside skin is sanded or abraded to minimize faults and defects of the hide
Nubuck : Very slightly buffed on the grain side to get
a soft and velvet feel
Jun 2002
PT. Daehwa

19. Glossary (2)
Suede Split :Leathers that are usually dyed and finished by
buffing the split leather.
Suede : Leather that are finished by buffing the flesh side
(opposite the grain side )
Chamois : Oil tanned leather
Hide and Skin : Hide is big animal, whereas, skin is small animal
Aniline : The name given to the particular transparent dye
used to color dyed leather
Drum dyed : The application of dye stuffs to leather by the
immersion of the leather in a drum that is tumbled
Naked Leather : A leather with no surface treatment of finish
other than dye matter which might mask or
alter the natural state of the leather
Jun 2002
PT. Daehwa

20. Hide Part Head A Shoulder B + C Belly F or G Bend (Butt) D or E
Side A+B+D+F
or A+C+E+G
Back B+D or C+E
Croupon D + E
Crop A+B+D
or A+C+E
Cullata D+E+F+G
Jun 2002
PT. Daehwa

21. Characteristic Part of Hide
Head and Shoulder : Loose, showing growth mark thick
Belly : Loose structure, thin
Croupon : The best part of the hide in respect to tightness
and firmness of the leather.
Relatively uniform in structure and quality.
Split suede is usually made out of Croupon.
The area percentage of the part
- Head & Shoulder ; about 20-25%
- Belly ; about 20-25%
- Croupon(Butt) ; about 45-55%
Jun 2002
PT. Daehwa

22. We work together : For the consistent and improving Quality.
For the confident products.
For the increased productivity
For the welfare of the peoples
Jun 2002
PT. Daehwa

23. Thank you The faith of our company
The manufacture of leather with a deservedly high reputation does not depend on secret formulae - so highly prized by our forefather - but on balanced and integrated staff working based on a high degree of mutual confidence
Thank you
PT.DAEHWA
Jun 2002
PT. Daehwa