Grading System
Raw jute fibers are classified according to the three properties of the fiber. Those are –
Jute Fiber: Based on the properties of raw jute fiber:
- Length
- Color
- Lusture
- Strength
- Beauty
- Roots and cleanliness and uniformity in color.
Based on Raw Jute by Color:
There are two types of colors-
- White and golden
- Brown to red
Corresponding to the main varieties capsularis and olitorius.
Based on Raw Jute export:
- A bottom
- B bottom
- C bottom
- X bottom
Based on the quality of raw jute:
(A) Pucca grading
(B) Kutcha grading
- Pucca grading:
The Raw jute from which roots have been cut.
- White jute:
- Bangla white special(BWS):
– White or Creamy
– Finest texture
– Very good luster, clean, well-hacked
– Completely free from any defects
– Completely free from red ends
(i) Bangla White-A (BW-A):
– White to light cream
– Fine texture
– Strong and very good luster, clean
– Completely free from red ends and any blemishes.
(ii) Bangla White-B (BW-B):
- Light cream to straw color
- Good texture
- Strong and good luster, well-hacked
- Free from blemishes and red ends excluded
(iii) Bangla White-C (BW-C):
- Light gray or light reddish to straw color
- Sound strength
- Average luster
- Clean but free from croppy or hard gummy
- Tops and roots and red soft ends are permissible.
(iv) Bangla White-D (BE-D):
- Any color
- Average strength
- Occasional bark and specks are permissible
- Slightly croppy and gummy tops are permissible
- Red ends are also permissible
(v) Bangla White-E (BW-E):
– Any color
– Any strength but free from perished fibers
– Unrated jute
- Tossa Jute:
- Bangla Tossa Special (BTS):
- Uniform golden or reddish color
- Finest texture
- Very strong
- Very good luster
- Clean-cut and well-hacked
- Completely free from any defects
- Bangla Tossa-A (BT-A):
(i-a)
- Uniform silver gray to golden in color
- Fine texture
- Strong and good luster
- Clean-cut and well-hacked
- Completely free from any blemishes
(i-b)
- Uniform light golden to reddish color
- Fine texture
- Strong and good luster
- Clean-cut and well-hacked
- Completely free from any blemishes
- Bangla Tossa-B (BT-B):
(ii-a)
– Light to medium gray color
– Sound clean
– Good texture
– Average luster
– Clean-cut and well-hacked
– Free from any defects
(ii-b)
- Light gray or reddish excluding dark gray color
- Sound clean
- Good texture
- Average luster
- Clean-cut and well-hacked
- Free from any defects
- Bangla Tossa-C (BT-C):
- Mixed colors
- Average strength
- Occasional bark and soft specks are allowable
- Free from runners
- Slightly choppy and gummy tops are permissible
- Well cut and hackled but free from black root ends.
- Bangla Tossa-D(BT-D):
– Mixed colors
– Average strength
– Occasional bark and specks allowable
– Free from runners
– Croppy and gummy tops are permissible
– Rough cut and hackled
– Free from black root ends
– Any color
– Any strength but free from unrated jute
– Stick and perished fibers
– Rough cut and hackled bark and hard Center
permissible
- Kutcha grading of Raw Jute:
Raw jute from which roots have not been cut.
Kutcha bales are graded as follows-
- Tops
- Middle
- Bottoms
- B-bottoms
- C-bottoms
- X bottoms
- Tops:
- Very strong jute fibers
- Excellent color and luster
- Free from all defects
- Cutting not more than (White 15% Tossa 10%)
- Middle:
- Strong sound jute fibers
- Average color and luster
- Free from all specks runners and harsh crop end
(White 25% Tossa 15%)
- Bottom:
- Sound fibers
- Medium strength
- Free from all hard-centered jute
(White 30% Tossa 20%)
- B-bottoms:
- Sound fiber
- Medium strength
- Not suitable for a higher grade
(White 35% Tossa 25%)
- C-bottoms:
- Medium strength
- Any color
- Free from runners and happiness.
- X-bottoms:
- Weak, harsh jute
- Free from tangled jute and stick