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76-80/3, Dr Kuverji Raishi Road Mandvi, Mumbai - 400009

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+91 98212 21269

Manufacturer, Supplier & Exporter of

a wide range of Dyes, Pigments & Food Colours

Optical Brightening Agent For Paper

Optical brightening agents (OBAs) for paper are synthetic compounds that are added to paper during the manufacturing process to enhance its whiteness and brightness. They work by absorbing ultraviolet light and re-emitting it as visible blue light, making the paper appear brighter and more appealing to the eye.

OBAs have a few notable properties. Firstly, they are highly effective, with just a small amount needed to achieve a significant brightening effect. Additionally, they are stable under normal storage conditions and do not affect the physical or chemical properties of the paper. However, they are sensitive to environmental factors such as pH, temperature, and light exposure, which can impact their effectiveness over time.

OBAs have a wide range of applications in the paper industry. They are used in the production of printing and writing paper, as well as packaging and specialty papers. OBAs can also be found in textiles, detergents, and plastics.

One notable company that produces OBAs is Megha International. Our company is a leading optical brightening agent manufacturers in India. The company’s OBAs are designed to meet the specific requirements of the paper industry, providing high whiteness and brightness with minimal impact on the paper’s physical and chemical properties. Megha International’s OBAs are also environmentally friendly and comply with international quality standards. With a commitment to innovation and customer satisfaction, Megha International is a trusted supplier of optical brightening agents for paper and other applications. For more details, click on Optical Brightening Agent for Paper pdf

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Types of Optical Brightening Agent for Paper

There are two main types of optical brightening agents (OBAs) used in the paper industry: stilbene and coumarin.

These are the most commonly used type of OBAs in the textile industry. They are typically applied to cotton, polyester, and nylon fabrics and are known for their ability to produce a bright and vivid white colour.

These OBAs are Coumarin OBAs are less commonly used and are typically yellow in color. They are less effective than stilbene OBAs but have a more yellowish tint, which can be desirable in certain types of paper products. Coumarin OBAs are also less stable and more sensitive to environmental factors, making them less suitable for some applications. commonly used in paper products and can also be used in textiles. They are known for their ability to produce a blue-white colour that enhances the brightness of paper and textiles.

In addition to these two main types, there are also hybrid OBAs that combine both stilbene and coumarin properties to produce a more versatile and effective product. Hybrid OBAs are typically more expensive than single-type OBAs but offer improved performance in some applications.

The choice of OBA depends on various factors such as the type of paper, the desired level of brightness, and the environmental conditions. It is important to choose an OBA that is compatible with the papermaking process and does not adversely affect the paper’s physical or chemical properties.

Optical Brightening Agent Manufacturing Process

The manufacturing process of optical brightening agents (OBAs) typically involves several stages.

The first step is the synthesis of the fluorescent dye, which is the active ingredient in OBAs. This involves combining various chemicals in a reactor under controlled conditions of temperature and pressure, typically using a catalyst to facilitate the reaction. The resulting product is then purified to remove any impurities and ensure consistency in the final product.

Next, the dye is formulated into a liquid or powder form suitable for use in papermaking. This involves combining the dye with other chemicals such as dispersants, solvents, and stabilizers to achieve the desired properties and performance. The formulation process is critical in ensuring that the OBA is compatible with the papermaking process and does not adversely affect the paper’s properties.

Once the formulation is complete, the OBA is added to the paper pulp during the papermaking process. The exact method of application varies depending on the type of paper and the desired level of brightness. Typically, the OBA is added to the pulp slurry at the wet end of the paper machine, where it is mixed with the pulp fibers and distributed evenly throughout the paper.

Finally, the paper is dried, calendared, and finished to produce the final product. The OBA absorbs ultraviolet light and re-emits it as visible blue light, which enhances the paper’s brightness and whiteness. The effectiveness of the OBA depends on various factors such as the amount of OBA used, the type of paper, and the environmental conditions.

In summary, the manufacturing process of OBAs involves synthesizing the fluorescent dye, formulating it into a suitable form, and adding it to the paper pulp during the papermaking process. This process enhances the paper’s whiteness and brightness, making it more appealing to the eye.

List of Optical Brightening Agent For Paper

Sr.
No.
Name of
products
CAS
No
 
CI No
 
E value
 
%Active
CategoryApplicaticationArea of Application  
pH
Sp.
Gravity/ Density
 
Colour
 
1
 
BHT HC
Liquid
 
12768-
92 – 2
 
113
 
192 –
208
 
30 – 33
 
DI
 
Paper
 
Wet End
 
9.0 – 11.0
 
1.18 – 1.22
gm/ml
Yellowish
Brown to Reddish
Brown
 
2
BHT – 115
Liquid
 
12768-
92 – 2
 
113
 
133 –
141
 
21.3 – 22.6
 
DI
 
Paper
 
Wet End
 
9.0 – 11.0
 
1.14 – 1.17
gm /ml
Yellowish
Browrt to Reddish Brown
 
3
 
(APPM)
Liquid
 
12768-
92 – 2
 
113
 
126 –
133
 
20.1 – 21.4
 
DI
 
Paper
 
Wet End
 
9.0 – 11.0
 
1.14 –
1.16gm /ml
Yellowish
Brown to Reddish Brown
 
4
UP
Powder
12768-
92 – 2
 
113
539 –
584
 
86.3 – 93.5
 
DI
 
Paper
 
Wet End
 
9.0 – 11.0
400 – 650
gm / ml
Light
Yellow to yellow
 
5
 
UP AR
Liquid
 
12768-
92 – 2
 
113
 
110 –
119
 
17.6 – 19.1
 
DI
 
Paper
 
Wet End
 
9.0 – 11.0
 
1.14 –
1:16gm /ml
Yellowish
Brown to Reddish
Brown
 
6
 
EFD
Liquid
 
4404-43
7
 
113
 
137
  
DI
 
Paper
 
Wet End
 
8.0-9.0
 
1.05 – 1.10
gm/ml
Yellowish
Brown to
Dark Brown
 
7
 
UP
Liquid
 
12768-
92 – 2
 
113
 
133.4 –
141.6
 
21.3 – 22.6
 
DI
 
Paper
 
Wet End
 
9.0 – 11.0
 
1.14 –
1.17gm /ml
Yellowish
Brown to Reddish Brown
 
8
UP Conc Powder12768-
92 – 2
 
113
 
575
 
92
 
DI
 
Paper
 
Wet End
 
9.0 – 11.0
400 – 600
gm / ml
Light
Yellow to yellow
 
9
 
JUP
Liquid
 
12768-
92 – 2
 
113
 
144 –
156
 
23.04 –
24.96
 
DI
 
Paper
 
Wet End
 
9.0 – l 1.0
 
1.14 –
1.17gm /ml
Yellowish
Brown to
Reddish Brown
 
10
BA 267
Powder
12768-
92 – 2
 
113
539 –
584
 
86.3 – 93.5
 
DI
 
Paper
 
Wet End
 
9.0 – 11.0
400 – 550
gm / ml
Light Yellow to
veI1ow
 
11
BA
powder
12768-
92 – 2
 
113
533 –
566
 
85.3 – 90.64
 
DI
 
Paper
 
Wet End
 
9.0 – 11.0
450 – 550
gm /ml
Light
Yellow to
vellow
 
t2
 
BA
Liquid
 
12768- 92
– 2
 
113
 
118 – 131
 
18.9 – 21
 
DI
 
Paper
 
Wet End
 
9.0 –
11.0
 
1.10 – 1.18
gm/ml
Yellowish
Brown to Reddish Bros n
13BMK
Powder
12768- 92
-2
253441 – 47870.6 –
76.4
DIPaperWet End9.0 –
11.0
500 -700
gm/m1
Yellow
14PMK
Powder
12768- 92
-2
253220 – 23935 – 38DIPaperWet End9.0 –
11.0
600 – 850
qm/ml
Yellow
 
15
DNK
Powder
12768- 92
– 2
 
253
 
345 – 374
 
55 – 59
 
DI
 
Paper
 
Wet End
9.0 –
11.0
500 – 700
gm / ml
Light
Yellow to yellow
 
16
UFD
Slurry
 
4193-55-9
 
113
 
126 – 133
20.22 –
21.4
 
DI
 
Paper
 
Wet End
8.5 –
10.5
 
250 Cps
Off White
to Light Yellow
 
17
 
TG
Liquid
 
12768- 92
– 2
 
113
 
133 – 141
 
21.3 –
22.7
 
DI
 
Paper
 
Wet End
 
9.0 –
11.0
 
1.14 –
1.18gm /ml
Yellowish
Brown to Reddish Brown
 
18
PWA
Liquid
12768- 92
– 2
 
114
 
72 – 78
11.5 –
12.5
 
DI
 
Paper
 
Wet End
9.0 –
l 1.0
1.08 – 1.12
gm / ml
Yellow to
yellow ish
Brown
 
19
PW
Liquid
12768- 92
– 2
 
115
 
72 – 78
11.5 –
12.48
 
DI
 
Paper
 
Wet End
9.0 –
11.0
1.08 – 1.12
gm / ml
Yellow to
yellowish
Brox n
 
20
4BB
Conc. Powder
   
336 – 364
 
51.7 – 56
 
DI
 
Paper
 
Wet End
 
9.0 – 11
500 – 750
gm / ml
Light
Yellow to yellow

OPTICAL BRIGHTENING AGENT FOR PAPER Properties / Characteristics - OPTICAL BRIGHTENING AGENT FOR PAPER Manufacturer in India

Optical brightening agents (OBAs) for paper have several notable properties and characteristics.

Firstly, they are highly effective at enhancing the whiteness and brightness of paper, producing a fluorescent effect that makes the paper more appealing to the eye. This effect is achieved by absorbing ultraviolet light and re-emitting it as visible blue light, which gives the paper a brighter appearance.

OBAs are also stable under normal storage conditions and do not affect the physical or chemical properties of the paper. However, they are sensitive to environmental factors such as pH, temperature, and light exposure, which can impact their effectiveness over time.

Another important characteristic of OBAs is their compatibility with different types of paper and papermaking processes. OBAs are typically added to the paper pulp during the manufacturing process and must be compatible with the other chemicals and materials used in the process. The formulation of the OBA is critical in ensuring that it does not adversely affect the paper’s properties or cause issues during the papermaking process.

In addition to these properties, there are also some limitations to the use of OBAs. For example, they are less effective in acidic environments and can be sensitive to certain types of chemicals and environmental conditions. Additionally, excessive use of OBAs can lead to a blueish tint in the paper, which can be undesirable in some applications.

Overall, the properties and characteristics of OBAs make them a highly effective and widely used additive in the paper industry, providing enhanced brightness and whiteness to a wide range of paper products.

OPTICAL BRIGHTENING AGENT FOR PAPER

Optical brightening agents (OBAs) offer several advantages for the paper industry. Some of these advantages include:

  • Enhanced Whiteness and Brightness: OBAs improve the whiteness and brightness of paper, making it more visually appealing and attractive to customers. This can help to increase the perceived value of the product and make it stand out on store shelves.
  • Cost-Effective: OBAs are a cost-effective way to enhance the appearance of paper. They are less expensive than other whitening agents, such as titanium dioxide, and require smaller amounts to achieve the desired effect.
  • Versatility: OBAs can be used in a wide range of paper products, including printing and writing papers, packaging materials, and tissue paper. They can be formulated to meet specific performance requirements and are compatible with various papermaking processes.
  • Stability: OBAs are stable under normal storage conditions and do not degrade or adversely affect the physical or chemical properties of the paper. This ensures that the paper maintains its appearance and performance over time.
  • Environmental Benefits: OBAs are typically biodegradable and have a low impact on the environment. They do not contain heavy metals or other harmful substances and are considered safe for use in paper products.

Overall, the advantages of OBAs make them a popular and widely used additive in the paper industry, providing cost-effective and versatile solutions for enhancing the appearance of paper products.

Application of Optical Brightening Agent for Paper

Optical brightening agents (OBAs) are used in a wide range of paper products to enhance their visual appearance. Some of the common applications of OBAs in the paper industry include:

  1. Printing and Writing Papers: OBAs are often added to printing and writing papers to improve their brightness and whiteness. This helps to make the text and graphics on the paper more vivid and easier to read.
  2. Packaging Materials: OBAs can also be used in packaging materials, such as boxes and bags, to enhance their visual appeal. This can be particularly important for products that are sold in retail settings, where the appearance of the packaging can influence purchasing decisions.
  3. Tissue Paper: OBAs are frequently used in tissue paper products, such as facial tissue and toilet tissue, to improve their softness and whiteness. This helps to make the tissue paper more pleasant to use and aesthetically pleasing.
  4. Specialty Papers: OBAs can be used in specialty papers, such as security papers and currency, to enhance their visual properties and prevent counterfeiting.

The specific application of OBAs depends on the type of paper product, the desired level of brightness, and the environmental conditions. It is important to choose an OBA that is compatible with the papermaking process and does not adversely affect the paper’s physical or chemical properties. Overall, OBAs are a versatile and effective solution for enhancing the visual appearance of paper products, making them more appealing to customers and improving their perceived value.

About Megha International

Looking for an OPTICAL BRIGHTENING AGENT FOR PAPER Exporter for brazil? 

Megha International (ISO 9001: 2008) Established in the year 1995, at Mumbai, India is the best optical brightening agent for paper manufacturer in India that offers an extensive range of dyes in national as well as international markets. Our research and development team carries out constant studies to develop products that reliably set us apart from our competitors and serve our clienteles best. With a remarkable focus on innovation and leveraging new-age expertise, we endeavour to sustain and develop a leading organization on a global scale. The company is a top OPTICAL BRIGHTENING AGENT FOR PAPER manufacturer in India, and is striving to deliver the finest quality of products to the consumers, while being environmentally sensitive.

Market Area of Megha International

As a prominent OPTICAL BRIGHTENING AGENT FOR PAPER supplier, Megha International is proud to export OPTICAL BRIGHTENING AGENT FOR PAPER in a wide range of countries across the globe. Our reach extends to many countries in Asia, including China, Vietnam, Singapore, Thailand, Malaysia, Korea, Philippines, Japan, and Indonesia. 

We also serve clients in the Middle East, such as UAE, Saudi Arabia, Kuwait, Qatar, Iraq, and Iran. 

In North Africa, we have clients in Algeria, Morocco, and Tunisia, while in Europe, we offer our services to Russia, the UK, France, Italy, Germany, the Netherlands, Romania, and Poland. 

In South America, we serve clients in Brazil, Argentina, Colombia, Peru, and Guatemala, as well as in Central America, including Mexico, Costa Rica, and Honduras. 

Finally, we also provide our services to clients in the United States and Chile. No matter where our clients are located, we are committed to delivering high-quality dyes and exceptional customer service.

Frequently Asked Question about Optical Brightening Agent For Paper

What are optical brightening agents for paper?

Optical brightening agents (OBAs) are chemical additives that are used in the papermaking process to enhance the brightness and whiteness of paper. They work by absorbing ultraviolet light and re-emitting it as visible blue light, which makes the paper appear brighter and whiter.

How do optical brightening agents work?

OBAs work by absorbing ultraviolet light and re-emitting it as visible blue light. This makes the paper appear brighter and whiter, improving its visual appearance.

Are optical brightening agents safe for use in paper products?

Yes, OBAs are considered safe for use in paper products. They are typically biodegradable and do not contain heavy metals or other harmful substances. However, it is important to choose an OBA that is compatible with the papermaking process and does not adversely affect the paper’s physical or chemical properties.

Can optical brightening agents be used in all types of paper products?

OBAs can be used in a wide range of paper products, including printing and writing papers, packaging materials, tissue paper, and specialty papers. However, the specific application of OBAs depends on the type of paper product, the desired level of brightness, and the environmental conditions.

How much optical brightening agent is needed to achieve the desired effect?

The amount of OBA needed to achieve the desired effect depends on several factors, including the type of paper product, the desired level of brightness, and the formulation of the OBA. In general, OBAs are added to the paper pulp in small amounts, typically ranging from 0.1% to 1% by weight.

Are there any limitations to the use of optical brightening agents?

Yes, there are some limitations to the use of OBAs. They are less effective in acidic environments and can be sensitive to certain types of chemicals and environmental conditions. Additionally, excessive use of OBAs can lead to a bluish tint in the paper, which can be undesirable in some applications. It is important to choose an OBA that is compatible with the papermaking process and does not adversely affect the paper’s physical or chemical properties.

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