| 3. Auxiliaries for the prevention of faulty dyeing |
| 3-1. |
Machine cleaning agent
Kayaclean F |
Effectiveness in cleaning stains from machinery
3-1-1. Test for the removal of tarred dyes
 Preparation of tarred stainless holder
The test material was prepared by drying and curing a stainless holder for wrapping cloth with a 500g/L solution of disperse black dyestuff.
130  60min wet treatment  90
drying 130 3 hours 180
5 hours Preparation completed
3-1-2. Cleaning test
Cleaning solutions of various concentrations of Kayaclean F (caustic soda, cleaning agent) were prepared. The tarred test material (stainless holder) was washed at 130
for 30min and rinsed twice. A dye-bath (pH 4.5) was then prepared and PET tropical dyed. The results were then checked for staining. This procedure was repeated three times.
Kayaclean cleaning test
(Click on the image for enlargement) |
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3-1-3. Dispersal of PET Oligomer
The results of testing for the dispersing ability of Kayaclean F are shown in the table below.
Results: Testing for the dispersal capabilities of Kayaclean F
| Method: |
Colorpet dyeing machine (150mL of solution) |
| |
PET Oligomer |
2g/L |
| |
Caustic soda |
2.5~5.0g/L |
| |
Cleaning agent |
2.5~5.0g/L |
| |
Treatment: 130 x 30min cooling to 40, suction filtration with Toyo filter paper No.5 (Black) |
Cleaning agent
Caustic soda;
Cleaning agent
|
Caustic soda
5g/L |
Kayaclean F |
Competitor's Product |
2.5
/2.5 |
5.0
/2.5 |
5.0
/5.0 |
2.5
/2.5 |
5.0
/2.5 |
5.0
/5.0 |
| Dispersing ability |
|
|
 |
 ~ |
|
|
|
Characteristics
Machine cleaning agent
| • |
Kayaclean F can readily remove un-fixed dyestuff attached to the inside of machinery, as well as decomposed dyestuff, and oil, sizing agent and oligomer fixed to fibers. |
| • |
By using it in conjunction with an alkali such as NaOH, this agent is extremely effective in the dispersal of tarred dyestuffs (coagulated dyestuffs) and is capable of preventing staining caused
by stripped dyestuff. |
| • |
By using it in conjunction with an alkali such as NaOH, this agent is very effective in the separation and dispersal of PET oligomer, thus capable of preventing problems associated with oligomers. |
| • |
When the oligomer is very difficult to remove, Kayaclean T-200 or T-600 should be used in conjunction with this agent. |
| • |
For the removal of silicon oil, use Kayareguard S (silicon resin removing agent) in conjunction with this agent. |
| • |
Allows the rationalization of the machine cleaning process (e.g. time, water consumption). |
| • |
Extremely stable, retaining liquid form even at low temperatures. |
| • |
Can be used with a variety of dyestuffs. |
Quality specifications
The quality specifications for Kayaclean F are shown in the table below.
Kyaciean F : Quality Specifications
| 1. Appearance |
Tannish liquid |
| 2. Ionicity |
Weakly cationic |
| 3. Solubility |
Dissolves readily in water |
| 4. pH |
Acidic |
| 5. Method of use |
| (1)Removal of tarred dyestuff |
| |
Kayaclean F |
5g/L |
| |
NaOH |
3g/L |
| |
Treatment temperature, time |
130 x 30min |
| (2)Removal of tarred dyestuff and oligomer |
| |
Kayaclean F |
5g/L |
| |
NaOH |
5g/L |
| |
Treatment temperature, time |
130 x 30min |
| Hydrosulfite 3g/L added as required. |
|
| 6. Packaging |
18kg can |
| 7. Handling |
Avoid contact with eyes, skin and clothing. Wear suitable protective equipment during operations. |
|