|
Item |
Indices |
|
Product name |
Optical brightener 4BK |
|
Ingredients |
stilbene sulfonic acid derivatives |
|
Appearance |
white or light yellow even powder |
|
Colorshade |
Slight bluish or Reddish |
|
Ionicity |
Anionic |
|
Moisture content % |
≤5.0% |
|
Content of Water-insoluble impurities % |
≤0.5% |
Product Application
Optical brightener 4BK is mainly used in whitening of cotton fabric and polyester /cotton blends,T/C whitening in one bath.
Product Property
1.Optical brightener 4BK has strong fluorescence, excellent whitening effect and slight bluish shade.
2.Optical brightener 4BK is with high light resistance and chemical stability.
3.Optical brightener 4BK has good acid resistance, stable in perborate and hydrogen peroxide.
Product Method of Usage:
1.Exhaust process: 0.1-0.8% (o.w.f.), bath ratio: 1:10-30
Temperature: 90--100℃ 30-40min-wash-dry.
The process can be adjusted according to the actual situation.
2.One bath process of Scouring hydrogen peroxide bleaching and whitening:
Dosage:0.2-0.8%( o.w.f.)
Stabilizer:1-5g/L
Scouring agent:0.5-1g/L
hydrogen peroxide:5-15/L
NaOH:2-4g/L
Bath ratio:1:10-30
Temperature:90--100℃×30-40min wash dry. The processing can be adjusted according to the actual situation.
Product Package,Transport and Storage
Production workshop
FAQ
What is Optical brightener 4BK?
Optical brightener 4BK, also known as Fluorescent Brightener 4BK, is a type of fluorescent whitening agent that is commonly used in the textile industry. It is a water-soluble compound that is primarily used to enhance the brightness and whiteness of textile products, such as cotton, wool, and synthetic fibers
How does Optical brightener 4BK work?
Optical brightener 4BK works by absorbing UV light and emitting blue light, which enhances the perceived whiteness of fabrics. It is especially effective in brightening yellowish or dull fabrics.
What is the advantage of 4BK?
Some of the advantages of optical brightener 4BK include its high effectiveness, versatility, and compatibility with other textile chemicals.
Optical brightener 4BK is also known for its high stability and good light fastness properties, which make it suitable for use in a wide range of applications. It is compatible with a range of textile fibers and can be used in different stages of textile production, including dyeing, printing, and finishing.
Optical brightener 4BK is generally considered to be safe for use in textile products, but it is important to follow proper safety guidelines when handling and using the compound.
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