CPT has a very small usage amount, only 1/10 of the original soda
and just need wash 2 times, which is water saving, electricity
saving, time saving and no residual carbonate, and no harmful
chemicals. CPT also will not produce white, flower colour, colour
and other quality issues. The use of CPT to achieve the ecological
environmental protection also reduces the cost.
Appearance: Transparent pale yellow liquid
Composition: High concentration buffer organic liquid alkali
Ionic Property: x
PH value: 13.0±0.2 (1% aqueous solution)
Solubility: Soluble in cold water
Stability: no delamination in long term storage
Characteristics and Applications
1. Easy to dissolve, reduce labour intensity
CPT is easy to dissolve because it is a liquid, mixing with cold
water CPT can be added to the reaction, and can greatly reduce the
colour defects in the dyeing process. There is no problem of
pipeline block caused by too much soda ash agglomeration. CPT has
the absolute advantage the low bath ratio even under the condition
of reactive dyes in the spray dyeing compared with soda.
2. Shorten dyeing time
Substitution alkali CPT is a new type of buffer liquid alkali, with
less electrolyte and low ionic strength, Buffer liquid alkali, less
electrolyte and low ionic strength. Therefore, in the process of
adding alkali colouring process is slow, and gets a better dyeing,
and it can added the alkali with 20 minutes no matter the colour or
the line colour, thus shorten the dyeing time.
3. Improve the quality of dyeing products, reduce the rate of
Due to the CPT slow colouring, the colour flower caused by adding
alkali too fast is greatly reduced. Especially for relatively
sensitive to colour, not only in shortening the time of adding
alkali, also can be greatly reduced staining colour flower which
effectively improve the quality of products, reduce the reparation
and saving cost.
4. Good colour yield
Use CPT instead of soda for colour fixing, even in the use of 1/10
soda can also ensure that there is sufficient to colour, and during
the fibre colouring operation there is no impact on adding
5. Easy to clean, improve fastness
Due to the CPT is liquid and the usage is small, so it is easy to
clean after dyeing, which greatly reduced the staining of white
spots caused by washing not complete like sodium carbonate. Also
CPT has better wet rubbing fastness and washing fastness than
6. Reduce washing times, without pickling
The washing times can be reduced after dyeing, and save the
pickling which is for the fibre to be neutral, so the process time
is shortened and the cost is reduced.
7. Environmentally friendly products
CPT saves nearly ten times of soda and several times washing, and
the COD value of process residue is low which greatly reduce the
treatment load of dyeing wastewater, also help the factory to
expand the scale.
8. Wide adaptability ,Good dyeing reproducibility
CPT is suitable for all kinds of reactive dyes, and has high colour
yield and reproducibility to the reactive dyes with different
structures. CPT is also suitable for all kinds of equipment,
especially in the low bath ratio and aerosol dyeing machine and CPT
can effectively solve the internal and external layers of
difference in yarn production.
The optimum usage of CPT varies with the type of dyed fabric and
reactive dyes. Generally based on 1/10 of the sodium carbonate and
appropriate to increase or decrease.