Americos White R Liquid
Introduction

Americos White R Liquid is optical brightening agent for polyester fabrics. It gives brilliant whitening effect, which has good fastness to sublimation, light and wet processing. It can be applied by high temperature exhaust or thermosol method.

The advantages of Americos White R Liquid are :

• It gives brilliant whitening effect
• The whitening effect shows good fastness to sublimation, light and wet processing
• It can be applied by high temperature exhaust or thermosol method
• It is suitable for whitening effect on textured polyester and polyester/cotton

Property

Application

Americos White R can by applied on fabric by exhaust as well as thermosol method.

(1) Exhaust Method (Jet Dyeing Machine)
The material is entered at about 50º C and the temperature is slowly raised to 130º C within 45-60 minutes. The treatment is continued at this temperature for about 30-45 minutes. The material is then washed in cold water and soaped at 60º-70º C for 10-15 minutes in 2 gm/ltr. neutral detergent.

(2) Pad-Thermosol Method

The fabric is padded through a pad-liquor containing 1-5 gm/ltr. Americos White R Liquid keeping 60-80% pick up. The padded fabric is dried at approximately 120º-140º C. Heavy or densely woven fabric requires higher fixation temperature or longer fixation time than lighter fabric with open weave.

• For normal Polyester and Polyester/Cotton: 180ºC - 185ºC. for 10-15 seconds.
• For textured Polyester: 170ºC - 180ºC
• The thermo-fixed material may be given rinsing and light soaping treatment with 2 gm/ltr. neutral detergent at 60ºC - 70ºC. for 10 -15 minutes.

Storage & handling precautions

• Store in cool place.
• Avoid storing in direct sunlight Americos White R should be stored at ambient temperatures.
• Do not allow freezing. If this product is stored for longer period, it is advisable to mix product well before its uses.
• The self-life of Americos White R is one year if stored temperature below 40ºC.
• The usual precaution in keeping chemicals away from eyes and skin should be observed.

(The information and data contained herein are based on controlled lab work. The recommendations are given on experience basis, but cannot be extended to assure every possible case. It should be verified and evaluated by the user through proper testing for the intended conditions of application. Americos does not express or imply any warranty, or guarantee the suitability of the product for the application intended by buyer of the product).

Suppliers of FLUORESCENT BRIGHTENER.

FLUORESCENT BRIGHTENER
(The information and data contained herein are based on controlled lab work. The recommendations are given on experience basis, but cannot be extended to assure every possible case. It should be verified and evaluated by the user through proper testing for the intended conditions of application. Americos does not express or imply any warranty, or guarantee the suitability of the product for the application intended by buyer of the product).

Optical Brightening Agent,Optical Brightener Manufacturers,Liquid Optical Brightening Agent,Optical Brightener Suppliers Americos Whitener BS (Optical Whitener, Neutral under UV lamp)
Americos Whitener BS suitable for exhaust and padding method at neutral pH to alkaline. It is compatible with all finishing additives like dyestuffs, resin and surfactant, gives normal even dyeing.

Advantages:

• Neutral under UV lamp
• Excellent for paper and pulp, since it is anionic, it is compatible with all nonionic additives for paper making chemicals
• Americos Whitener BS also used for textiles

Properties:



Application :
Textile:


Paper and Pulp


Detergent:


Storage & handling precautions :

• Store in cool place and avoid storing in direct sunlight
• The shelf life of Americos Whitener BS is two years under recommended storage
• The usual precautions in keeping chemicals away from eyes and skin should be observed

Technical Service :
Information covering specific application of this product is available. Americos Industries will work with customers to enhance processes and solve problems. Let us know what you need and we will assist you.

Optical Brightening Agent,Optical Brightener Manufacturers,Liquid Optical Brightening Agent,Optical Brightener Suppliers Americos White R Liquid (Fluorescent brightening agent)
Americos White R Liquid is fluorescence brightening agent for polyester fibers. It gives brilliant whitening effect which has good fastness to sublimation, light and wet processing. It can be applied by high temperature exhaust or pad-thermo sol method and suitable for whitening effect on texturised polyester and polyester / cotton. It is available as nonionic fluid dispersion greenish yellow in colour. The dispersion is miscible with water and can be diluted to any desired concentration by adding water to it. It is recommended to adjust the ph of the bath between 4.5-5.5 as whitening effect may be reduce in extremely acidic or alkaline condition.

Method of application
Preparation of dispersion
The required amount of Americos White R Liquid is weighed out and stirred with 20 times of its weight of soft water at room temperature. The required volumes are made up adding more soft water.

High-temperature method:
The bath is prepared with 0.1-0.35 % Americos White R Liquid 1.0 g/l suitable dispersing agent pH 4.5-5.5 with acetic acid Material to liquor ratio 1:10

The material is entered at about 50ºC and the temperature is slowly raised to 130ºC within 45-60 minutes. The treatment is continued at this temperature for about 30-45 minutes. The material is then washed in cold water and soaped at 60º-70ºC for 10-15 minutes in 2 g/l. Neutral detergent.

Pad-Thermosol method:
Padding:
The fabric is padded through a pad-liquor containing 1-5 g/l Americos White R Liquid at room temperature keeping 60-80% expression. The padded fabric is dried at approximately 120°-140ºC fixations. The fixation condition depends on fabric construction. Heavy or densely woven fabric requires higher fixation temperature or longer fixation time than lighter fabric with open weave.

However, following fixation condition may be taken as general recommendation:
For normal polyester & polyester / cotton: 180º-185ºC for 10-15 seconds.
For Texturised polyester : 170º-180ºC
The thermo fixed material may be given rinsing and light soaping treatment with 2g/l neutral detergent at 60º-70ºC. For 10-15 minutes.

Note: The recommendation is based on laboratory experiments and to be considered as guide lines only. For bulk production, it is necessary to carry out small scale trails to conform the local conditions.

Optical Brightening Agent,Optical Brightener Manufacturers,Liquid Optical Brightening Agent,Optical Brightener Suppliers The fastness properties were tested on polyester with 5 g/l Americos White R Liquid by pad- Thermosol method. The figures give the information on Change in whiteness



Storage & handling precautions :

• Store in a cool/dry place
• Avoid storing in direct sunlight