H
T
P
- o
  - O
  - O
  - O
  - O
- T
N
V
O
- B
- c
- T
- F
N

Optical Brighteners For Plastic, Resin

B
2

2

<O, O, O,7<

g

BBU正 — O
L

荧光增白剂KSN新 — O

4

4

1

荧光增白剂KCB新 — O

荧光增白剂351新 — O

Intermediate

B

P
O
O
T
1
O
O
O
O
O
O
O

G
G
B

F

F

2

M2
D
B2
I
A2
W
T2
D
M2
W
C2
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g

1
2
1
O
F
W
o
F
O
F
1

3
T
s

© Ranipal WG Optical Brightening Agents Fluorescent Whitening Agent Vbl Brightner KCB Shandong Subang Optical Brightener 52 >