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
Dosage |
0.08-0.2% of detergent solution. |
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.
(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).
Americos optical brightening agent is highly
concentrated optical brightener for cellulosic fabrics. The brightness
obtained by Americos Optibright XBL has a bluish tone. It is used in low
dosages and is cost effective.
The advantages of Americos Opti-Bright XBL are
- It does not cause yellowing
- It gives excellent brightness to cellulase.
- It is provide fluorescent brightness to pulp
- It does not form micro lumps on the fabric and avoids patch formation
that is generally caused, due to the un-dissolved particles of
conventional brightening agent.
- It is effective in lower concentration
Properties
Applications
Americos Opti-bright XBL can be applied at the final stage of processing or
a stage earlier. It can be used in hydrogen peroxide/chlorine bleaching bath
at elevated temperature of up to 150°C. The dosage may vary from 0.1%
to 0.5% (on weight of material). The processing time can be adjusted between
10 to 30 minutes.
Storage & handling precautions
- Store in cool place
- Avoid storing in direct sunlight Americos Optibright XBL 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 shelf-life of Americos Opti-Bright XBL is one year if stored
temperature below 40oC.
- The usual precaution 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.
(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).
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.
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
Light |
56 |
Washing: 40°C (test 1) |
5 |
60°C (test 3) |
5 |
95°C (test 4) |
45 |
Perspiration: Alkaline |
5 |
Acidic |
5 |
Dry cleaning |
4 |
Dry-heat pleating: mild 180°C |
5 |
Severe (210°C) |
45 |
Water |
45 |
Sea Water |
45 |
Hypochlorite Bleaching |
45 |
Storage & handling precautions
- Store in a cool/dry place
- Avoid storing in direct sunlight
- The shelf life of Americos White R Liquid is one year, if stored
below 30°C
- The usual storage, handling and safety precautions 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.
(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).