Optical Brightener DMS
C.I.NO. : 71 CAS NO. : 16090-02-1
Ionicity: Anion Appearance: White to yellowish powder
Strength: 100±1
Applicant: Can be used in detergent, washing powder and soap. Packing: 25kgs/drum or as per request.
Optical Brightener CBS-X
C.I. No.: 351
CAS No.: 27344-41-8
Appearance: Yellowish-green powder
Assay: 98.5% min.
E Value: 1143 ± 38
Whitening Strength: 100 ± 3
Application: Commonly used in synthetic detergents and soap industries.
Packing: As per customer request.
Optical Brightener MDAC
C.I. No.: 52
CAS No.: 91-44-1
Appearance: White to off-white powder
Assay: 99.5% min.
Application:
Used for brightening hard and soft PVC
Applied in wool, natural silk, acrylic fibers, detergents, and washing powders
Commonly used as a laser dye
Also known as Uvitex SWN (Ciba), Whitex WS (NSK)
Packing: 25 kg drums or as per customer request.
Optical Brightener CBS-X
C.I. No.: 351
CAS No.: 27344-41-8
Appearance: Yellowish-green powder
Assay: 98.5% min.
E Value: 1143 ± 38
Whitening Strength: 100 ± 3
Application: Used in the textile industry.
Packing: As per customer request.
Optical Brightener VBL
C.I. No.: 85
CAS No.: 12224-16-7
Appearance: Light yellow to yellow powder
Ionicity: Anionic
Strength: 100 ± 1
Application:
Used for whitening white cotton and viscose fiber
Enhances brightness in light-colored and printed products
Also applied in paper pulp and paints
Packing: 25 kg drums or as per customer request.
Optical Brightener BBU
C.I. No: 220
CAS No: 16470-24-9
Appearance: Yellowish powder
Ionicity: Anionic
Strength: 100 ± 1
Application:
Can be used for whitening cotton and viscose fiber, in white discharge printing, as well as in paper pulp, surface sizing, and coating.
Packing: 25 kg drums or as per customer request.
Optical Brightener CXT
C.I. No: 71
CAS No: 16090-02-1
Molecular Structure: N/A
Ionicity: Anionic
Appearance: White to yellowish powder
Strength: 100 ± 1
Application: Can be used for brightening cotton, yarn, and nylon fiber.
Packing: 25 kg drums or as per customer request.
Optical Brightener EBF
C.I. No: 185
CAS No: 2866-43-5
Molecular Structure: N/A
Appearance: Bright yellowish crystal powder
Assay: 99% min.
Application: Can be used in terylene, acetate, polyamide, all sorts of polyolefin plastics, ABS, and engineering plastics.
Packing: 25 kg drums or as per customer request.
Optical Brightener ER-III
Chemical Name: 1,4-Bis(P-Cyanostyryl)Benzene
C.I. No.: 199:2
CAS No.: 13001-40-6
Molecular Structure: N/A
Appearance: Yellowish to greenish powder, greenish shade
Assay: 99% min.
Application: Can be used in polyester, ethylic acid, and nylon, especially in plastic. It can improve thermal stability when mixed with ER-I and ER-II.
Use Method: Add 0.02-0.08% in polyester fiber, adjusting dosage according to whiteness requirements, or add delustering agents and blue-violet dyes. When mixed with ER-I and ER-II, the optimal dosage is 10%-60%.
Packing: 25 kg drums or as per customer request.
Optical Brightener ER-II
Chemical Name: (O-Cyanostyryl, P-Cyanostyryl) Benzene
C.I. No.: 199:1
CAS No.: 13001-38-2
Molecular Structure: N/A
Appearance: Yellowish to greenish powder, blue-violet shade
Assay: 99% min.
Application: Can be used in polyester fiber, polyester-blended fiber, and plastics.
Packing: 25 kg drums or as per customer request.
Optical Brightener ER-I
C.I. No.: 199
CAS No.: 13001-39-3
Molecular Structure: N/A
Appearance: Yellowish to greenish powder
Assay: 99% min.
Application: Can be used in polyester fiber, PE, PP, and PVC.
Packing: 25 kg drums or as per customer request.
Optical Brightener PF
C.I. No.: 135
CAS No.: 1041-00-5
Molecular Structure: N/A
Appearance: Yellowish crystal powder
Assay: 99% min.
Application: Can be used in PVC, polystyrene, polyacrylate, polyester film, ABS, perspex, name cards, fine paper, etc.
Packing: 25 kg drums or as per customer request.
Cationic Liquid Dyes
Cationic Brown 23 Liquid
Specification:
Strength: 100%
pH: 1.0-3.0
Viscosity: ≤20mPa.S @ 25℃
Usage:
Dilutable with soft water at any ratio.
Pour into the mixing box using a metering pump, maintaining a certain interval with anionic additives.
Adjust color by controlling dosage or mixing with liquid yellow, liquid red, or liquid black for different shades.
Cationic Yellow 103 Liquid
Specification:
Strength: 100%
pH: 1.0-3.0
Viscosity: ≤20mPa.S @ 25℃
Usage:
Dilutable with soft water at any ratio.
Pour into the mixing box using a metering pump, maintaining a certain interval with anionic additives.
Can achieve different colors by mixing with liquid brown, liquid yellow, or liquid black.
Package and Storage:
1000 kg IBC drum.
Store in a shaded, dry, and well-ventilated place.
Durability: One year.
AKD WAX CAS NO.: 144245-85-2
Chemical Name: Alkyl Ketene Dimer
Alias: AKD Wax
Alkyl ketene dimer (AKD) is a widely used neutral sizing agent in papermaking. The structural formula consists of alkyl groups (R or R'), with different alkyl modifications producing various AKD compounds. Octodecane and cetane are commonly used in papermaking neutral sizing agents.
AKD wax appears as a white-to-yellow solid with a melting point of approximately 47–51°C and is soluble in ethyl alcohol, benzene, chloroform, and other organic solvents. The reactive ketone group in AKD has high activity and undergoes esterification with hydroxyl groups in cellulose.
Specification
Appearance: Light yellow granule
Melting Point: 47°C
Iodine Number (Iâ‚‚) (w/g/100g): 45.0 min
Acid Value (KOH) (w/g/100g): 5.0 max
Purity: 88% min
Toluene Content: 0.001% max
Product Application
AKD wax is used to produce AKD emulsions, which serve as sizing agents in papermaking. The emulsification process involves a cationic emulsifier, high-speed shearing, and high-pressure homogenization, resulting in a liquid AKD sizing agent after cooling.
In the papermaking process, AKD sizing agents provide fluid resistance to paper and paperboard, preventing liquid penetration and diffusion, enhancing paper durability. AKD contains both hydrophobic and hydrophilic groups, facilitating even distribution and bonding with cellulose fibers.
During paper production, AKD particles, which carry a positive charge, are retained between negatively charged paper fibers with the help of cationic starch, PAM, and other retention agents. In the pressing and drying stages, AKD particles expand and form a uniform film over the fibers due to their low melting point. Over time, the lactone ring in AKD molecules undergoes esterification with hydroxyl groups in the fibers, forming covalent bonds, thereby enhancing paper hydrophobicity and resistance to liquid absorption.
AKD Sizing Agent Series
AKD Wax
Cationic Reagent (PTAC)
Polymer Emulsifier
AKD Emulsifier
Special Starch for AKD
Zirconium Oxychloride
Dispersant
Curing Agent (PolyDADMAC)
SFP Liquid (CI. 357)
SFP Liquid is a brilliant, urea-free, hexasulphonated stilbene brightener suitable for Size Press and Coating applications.
Properties
Chemistry: Derivative of Stilbene Disulphonic Acid
Appearance: Clear yellowish liquid
Ionic Nature: Anionic
Specific Gravity: 1.10-1.12
Shade: Bluish to neutral white
Solubility: Soluble in all proportions
Substantivity: High
pH (1% aqueous solution): 8-10.5
Note: The product's performance is not affected by its color.
Stability
SFP Liquid remains stable for 12 months in a closed container at room temperature. It also maintains its stability in acids, alkalis, and hard water, both in liquor and on fiber.
It is highly stable during storage, even at cold temperatures. If stored below 0°C, it may freeze, but can be thawed at room temperature or briefly heated (not exceeding 60°C) without losing effectiveness.
Uses
SFP Liquid is an optimal optical brightening agent (OBA) for Coating and Sizing applications, offering performance equivalent to OBAs of the same chemistry and strength.
Fastness Properties
The light fastness of SFP Liquid is comparable to other OBAs with similar chemical structures.
Safety & Environment
Standard chemical handling precautions must be followed during storage, handling, and use. More details are available in the Safety Data Sheet (SDS).
Application in Size Press
SFP Liquid performs effectively with conventional starches used at the Size Press. It is compatible with CMC, PVA, anionic, and weakly cationic synthetic sizing agents.
Key Considerations:
Works best when the base paper pH is above 5.0.
Typical dosage: 0.5-7.5 g/L in Size Press liquor.
Application in Coating
OBAs of the diamino stilbene disulphonic acid derivative class do not strongly bind to coating pigments and synthetic latexes (acrylic acid ester or butadiene-styrene copolymers). Co-binders are required for optimal effect.
Suitable Co-Binders (Based on Solids Content):
PVA: 1.2 parts
CMC: 1.2 parts
Starch: 6.0 parts
Synthetic co-binders: 0.4 parts
To a lesser extent, melamine and urea formaldehyde-based cross-linking agents can also act as carriers for OBAs.
Performance Considerations:
Works effectively at pH 7-11 without affecting the rheological properties of coating formulations.
Can be added undiluted at nearly any stage of the coating preparation process.
Typical dosage: 0.2-1.0 parts based on coating pigment (adjusted as per brightness requirements).
UP Liquid (C.I. 113)
UP Liquid is a brilliant, urea-free, disulphonated stilbene brightener, specially designed for Wet End applications in papermaking.
Properties
Chemistry: Derivative of Stilbene Disulphonic Acid
Appearance: Clear amber liquid
Ionic Nature: Anionic
Specific Gravity: 1.18-1.20
Shade: Bluish to neutral white
Solubility: Soluble in all proportions
Substantivity: High
pH (1% aqueous solution): 9.5-10.0
Stability
In SolutionOn FibreHydrosulphiteVery GoodVery GoodAcidsNot stable under pH 5Not stable under pH 5AlkalisVery GoodVery Good
Uses
UP Liquid in the Wet End
UP Liquid is suitable for sized unfilled and filled paper & board (pH 4-9), as well as unsized paper, provided the water hardness is above 50 ppm CaO. It is ideal for furnishes containing a high proportion of mechanical pulp or secondary fiber.
Shade
UP Liquid delivers a neutral shade in all applications. However, excessive usage may lead to a greenish hue.
Stability
UP Liquid exhibits high stability during storage and at cold temperatures. If stored below 0°C, it may freeze, but it can be thawed without losing effectiveness when left at room temperature or heated briefly (not exceeding 60°C).
Fastness Properties
Its light fastness is comparable to other OBAs with the same chemical structure.
Safety & Environment
Standard chemical handling and safety guidelines must be followed. Further details can be found in the Safety Data Sheet (SDS).
Application in the Wet End
UP Liquid can be introduced:
Batch-wise in the pulper or mixing chest
Continuously at suitable dosing points in the stock preparation system
Important Considerations:
Apply before alum or cationic auxiliaries.
Whiteness depends on treatment time and furnish consistency.
Best effect is achieved when dosed at points of high furnish consistency, particularly in soft water conditions.
Typical Dosage: 0.2-1.0 parts based on coating pigment (adjusted for brightness requirements)
Note: Dilute solutions should not be exposed to natural light.
ABP Liquid (C.I. 220)
ABP Liquid is a brilliant, urea-free, tetra-sulphonate stilbene brightener, suitable for application at the Wet End, Size Press, and in Coatings.
Properties
Appearance: Clear, yellow to yellowish-brown liquid
Chemical Constitution: Diaminostilbene disulphonic acid derivative
Solubility: Fully miscible with water in all proportions
pH (1% aqueous solution): 8.0-10.0
Density at 25°C: 1.10 ± 0.05 g/cm³
Ionic Character: Anionic
Usage
1. In the Wet End
Ideal for sized, unfilled, and filled paper & board (pH 4-9), as well as unsized paper, provided water hardness exceeds 50 ppm CaO.
Well-suited for furnishes with high mechanical pulp or secondary fiber content.
2. At the Size Press
Works effectively in starch-based Size Press solutions.
Compatible with CMC, PVA, and synthetic binders.
To achieve optimal results, base paper pH should be above 5.
3. In Coating
Suitable for coating formulations with natural and synthetic binders and common pigments (pH 7-11).
Whiteness effect depends on the type and quantity of co-binder used.
Shade
Produces a neutral shade across all applications.
Excessive dosage may result in a greenish hue.
Stability
Highly stable in storage, even at low temperatures.
If stored below 0°C, the product may freeze but can be thawed without loss of effectiveness at room temperature or by gentle heating (max 60°C).
Fastness Properties
Light fastness is comparable to other OBAs with the same chemical structure.
Application Guidelines
ABP Liquid in the Wet End
Can be batch-added in the pulp/mixing chest or continuously dosed in the stock preparation system.
Apply before alum or cationic additives.
Best effect is achieved when dosed at high-consistency furnish points, especially in soft water conditions.
Typical Dosage: 0.05-1.0% (based on bone-dry cellulose weight).
ABP Liquid at the Size Press
Works well with conventional starches.
Compatible with CMC, PVA, anionic, and weakly cationic synthetic sizing agents.
Best performance is achieved when base paper pH exceeds 5.
Typical Dosage: 0.5-7.5 g/L in Size Press liquor.
ABP Liquid in Coating
OBAs of this class have low affinity for coating pigments and synthetic latexes, so co-binders are required.
Best carriers (in decreasing effectiveness):
PVA → 1.2 parts
CMC → 1.2 parts
Starch → 6.0 parts
Synthetic co-binders → 0.4 parts
To a limited extent, melamine- and urea-formaldehyde-based cross-linking agents can also function as carriers.
pH Range: 7-11 (does not affect coating rheology).
Can be added undiluted at nearly any stage in coating preparation.
Typical Dosage: 0.2-1.0 parts (based on coating pigment, adjusted for brightness requirement).
Optical Brightener KSN
C.I.NO. : 368
CAS NO. : 5242-49-9
Appearance: Yellow powder
Assay: 99% min.
Application: Can be used in polyester, polyamide, polypropylene, silk textile, and wool fabric. Also applicable in any process segments of film injection molding, hot compacting material, and high polymerized synthetic material.
Packing: 25kgs/drum or as per request.
Optical Brightener KCB
C.I.NO: 367
CAS NO: 5089-22-5
Appearance: Yellow to greenish powder
Assay: 99% min.
Application: Can be used in plastic film, injection molding materials, EVA foam plastics, and rubber products.
Packing: 25kgs/drum or as per request.
Optical Brightener FP
C.I.NO: 378
CAS NO: 40470-68-6
Appearance: Yellowish crystal powder
Assay: 99% min.
Application: Can be used in PVC, polystyrene, etc. It can also be used in coatings, printing inks, and synthetic fibers.
Packing: 25kgs/drum or as per request.
Optical Brightener OB-1
C.I.NO: 393
CAS NO: 1533-45-5
Appearance: Yellow powder
Assay: 99% min.
Application: Can be used in polyester, nylon, and polypropylene fiber, as well as in polypropylene plastic, hard PVC, ABS, EVA, polystyrene, polycarbonate, etc.
Packing: 25kgs/drum or as per request.
Optical Brightener OB
C.I.NO: 184
CAS NO: 7128-64-5
Appearance: Yellowish crystal powder
Assay: 99% min.
Application: Can be used in PVC, PS, PE, PP, ABS, thermoplastic plastics, acetate fiber, paint, coating, and printing ink, etc.
Packing: 25kgs/drum or as per request.