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Optical Brightener 2B For Cotton

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Optical Brightener 2B For Cotton Specification

Usage
Used in textile industry for cotton fabric whitening and brightening

EINECS No
248-401-2

Product Type
Optical Brightener

Ingredients
Stilbene Derivative

CAS No
27344-41-8

HS Code
32042000

Molecular Weight
634.58 g/mol

Structural Formula
[Structural Formula Not Shown]

Melting Point
220C (decomposition)

Grade
Industrial Grade

Properties
Excellent affinity for cotton and cellulosic fibers, high brightness, good solubility in water, suitable for exhaust and pad application, high stability to acids and alkalis under recommended conditions.

Ph Level
7.0 - 9.0 (1% solution)

Application
Optical brightener for cotton, cellulose, viscose, and their blends

Storage
Keep in a cool, dry, and ventilated place, protected from moisture and direct sunlight

Shape
Powder / Granular

Purity
99%

Molecular Formula
C28H20N2Na2O8S2

Taste
Odorless

Solubility
Easily soluble in water

Appearance
Yellowish Greenish Powder

Poisonous
Non-poisonous

Shelf Life
2 years when properly stored

Smell
Odorless

Physical Form
Powder

Density
0.75 Gram per cubic centimeter(g/cm3)

Fastness
Good light and washing fastness

Ionic Character
Anionic

Dosage
0.05% 0.2% owf (on weight of fabric) depending on desired whiteness

Eco-friendliness
Formaldehyde-free, APEO-free

Packaging
25 kg/fiber drum or as required

Color Index
C.I. Brightener 28

Compatibility
Compatible with most anionic and non-ionic auxiliaries

pH Stability
Stable in recommended pH range (7.0 9.0)

About Optical Brightener 2B For Cotton

OPTICAL BRIGHTENER 2B POWDER

DeepWhite 2B Pdr is an fluorescent brightener for Cellulosic fibres & its blends. It imparts an excellent bluish whiteness on the treatedfabrics. It can be applied by exhaust as well as padding application.

Properties

Chemical Nature: Stilbene Derivative.

Ionic Nature: Anionic

Appearance: Light Yellow to Yellow colour free flowing Powder

Compatibility: Compatible With Anionic & Nonionic Products

Solubility : Soluble in Water

pH Stability during application: 5-12

Advantages of Optical Brightener 2B for Cotton

Optical Brightener 2B offers remarkable brightness enhancement and excellent affinity for cotton and cellulosic fibers. Its high solubility and compatibility with a wide range of anionic and non-ionic auxiliaries ensure easy application using standard textile processes. The products stability under recommended pH conditions and resistance to acids and alkalis lead to consistent, uniform results every time. Its formaldehyde-free and APEO-free composition meets eco-friendly standards, ensuring user and environmental safety.

Ideal Application Methods and Dosage

This optical brightener is suitable for both exhaust and pad processes. Typical dosing ranges from 0.05% to 0.2% based on the fabrics weight, allowing precision tailoring of whiteness levels. Consistent solubility and stable performance across textile machinery make Optical Brightener 2B a versatile addition to dyeing and finishing lines. The powder form enables easy integration and handling in industrial settings.

FAQs of Optical Brightener 2B For Cotton:

Q: How is Optical Brightener 2B applied to cotton and cellulosic fabrics?

A: Optical Brightener 2B can be used in both exhaust and pad applications. It is dissolved in water and applied to the fabric, following the recommended dosage based on the desired whiteness. It performs optimally within a pH of 7.0 to 9.0 and is compatible with most anionic or non-ionic auxiliaries commonly used in textile processing.

Q: What benefits does Optical Brightener 2B offer in textile manufacturing?

A: This product significantly enhances brightness and whiteness in cotton and cellulosic fabrics, delivering vibrant results with good fastness to light and washing. Its high solubility ensures even distribution, while its eco-friendly, non-toxic formula complies with stringent safety standards.

Q: When should Optical Brightener 2B be used in the textile process?

A: It is typically used during the finishing or after-treatment stages of textile manufacturing, following dyeing or bleaching but before final drying and packing. This maximizes its brightening effect and ensures color uniformity throughout the fabric.

Q: Where should Optical Brightener 2B be stored for optimal shelf life?

A: Store the brightener in a cool, dry, and well-ventilated area, protected from moisture and direct sunlight. Proper storage under these conditions secures a shelf life of up to 2 years.

Q: What is the recommended dosage for optimal results on cotton fabrics?

A: The optimal dosage ranges between 0.05% and 0.2% based on the weight of fabric (owf). The exact amount depends on the level of whiteness preferred and the application method used.

Q: Is Optical Brightener 2B safe and environmentally friendly?

A: Yes, it is formaldehyde-free, APEO-free, and non-poisonous, contributing to a safer working environment and compliance with eco-friendly chemical standards.

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