optical brightener PC

optical brightener PC

Optical Brightener Agent PC liquid is widely used for Cotton, nylon, rayon, T/C, T/R, linen, wool and silk. This product optical brightener PC can be dissolved in warm water, and work with most chemical auxiliaries for dyeing & finishing. optical brightener PC is suitable for One bath dyeing.

Product Details

Optical Brightener Agent PC liquid

other name: optical brightener 134, fluorescent brightener PC, fluorescent whitener PC


i. Introduction

Optical Brightener Agent PC liquid is widely used for Cotton, nylon, rayon, T/C, T/R, linen, wool and silk. This product optical brightener PC can be dissolved in warm water, and work with most chemical auxiliaries for dyeing & finishing. optical brightener PC is suitable for One bath dyeing. The following in accordance with its basic properties and dyeing method is introduced as following.


ii. Technical index

a.

Physical   characteristics                                       

Fastness   properties                                     

Chemical   Construction

Styrylbenzene   derivative

 H2O2

Stable

Appearance

Brown liquid

 Reductant

Stable

Ionicity

Negative

 Chlorine

Unstable

Affinity

High

 Chlorate

Unstable

Shade

Natural   white with red

 pH   scope

6-12

Storage

6 Months

b.

Fastness properties                                                                                         

 Items

Conditions

Cotton, viscose

Chinlon

Wool, silk

Fastness to light


Grade 3-4

3

2

Washing fastness

 

 

40℃

5

5

5

60℃

5

5

*

95℃

4

*

*

Chlorine fastness


4

*

*

Perspiration fastness 

Acidic

5

Grade 4-5

4

Alkalinity

5

Grade 4-5

4

Heat fastness

180℃/30s

5

4

*

Dry cleaning fastness


5

5

5

The above data in accordance with the ISO standard for testing

c.

Cotton, cellulose

 Chinlon

 

Temperature range

60℃ - 120℃

Temperature range: (high   temperature dyeing)

105℃ - 130℃

Time

15 - 30 minutes

Time

20 - 30 minutes

Temperature range :(normal temp. dyeing)

90℃ - 98℃

Recommended dosage 

  0.2 - 0.5%

 

Time

45 - 60 minutes

Recommended dosage

  0.5 – 2%


d. notice

1. Do not use cationic auxiliaries. Because that may cause conflict with cationic optical brightener agent. Sediment will be.

2. There are metal ions,such as: Cu、Fe、Mn、Zn in the water. Those will impact the whitening effort of OBA. For this reason,user can use metal ion chelating agent to remove them in advance.

3. Do not exposed PC to the sun.

4. PC has good fastness to H2O2,so H2O2 bleaching and fluorescent whitening treatment can be done in one bath dyeing.

5. PC is a kind of fluorescent dyes with excellent whitening effect,Only use appropriate amount is enough to show whitening effect. Extinction phenomenon will be if over dosage.

6. Its dyeing speed is very fast, dye uniformity and compatibility good, so room temperature bath without additives can be dyeing.

7. If PC be used in the dye bath which containing chlorite that will impact the whitening effort, so user need to remove chlorine fully before use PC.


iii. Package                                                                                  

25kgs per drum or indicate


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