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Auxiliaries for a system of correction of faulty cloth |
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K. Izutsu, Nippon Kayaku Chemicals Division |
| 2. Auxiliaries for a system of correcting faulty cloth |
| 2-4. |
Agent for the removal of fluoride resin
Kayareguard F |
 Test for the removal of fluoride water-repellent agent
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0.3ml of a 2.0% solution of fluoride water-repellent agent was attached to the substrate. The substrate was then dried for 10min at 110 ,
and cured at 180 for 1min. |
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Removal test
Kayareguard F
Caustic soda
Treatment temperature, time
Liquor ratio |
5.0g/L
3.0g/L
95 x 60min
1:30 |
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Soaping test
(Anion exchange)
Anionic soaping agent
Hydrosulfite
Soda ash
Treatment temperature, time:
Liquor ratio |
3.0g/L
2.0g/L
1.0g/L
85 x 60min |
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Evaluation of the effectiveness of removal
Kayalon Polyester Red Violet FBL conc 0.1g/L o.w.f.
Dyeing temperature and time 95 x 20min
Liquor ratio 1:30 |
Evaluation of the effectiveness of the removal of the water repellent agent with dyeing test results
Test for the removal of fluoride resin with Kayareguard F
| Test conditions |
•Kayareguard F
•Caustic soda
•Liquor ratio
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5.0g/L
3.0g/L
1:30 |
| Treatment temperature, time |
95 x 60min |
| Soaping |
Anionic soaping agent
Hydrosulfite
80~85, 20min |
5g/L
2g/L
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Characteristics
Kayareguard F is an agent for the removal of fluoro resins.
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Ideal for the re-processing of polyester items that have undergone water-repellent or oil-repellent finishing. |
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Has little effect on dyeing after reprocessing and treated cloth can undergo water-repellent and oil-repellent treatment with fluoro resin again. |
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Treatment can be carried out in dip-bath. |
Quality specifications
The quality specifications for Kayareguard F are shown in the table below.
Kayareguard F: Quality specifications
| 1. Appearance |
Transparent pale yellow liquid |
| 2. Components |
Special cationic surfactants |
| 3. Ionicity |
Cationic |
| 4. Solubility |
Dissolves readily in cold water |
| 5. Method of use |
| Example recipe |
Kayareguard F |
2~5g/L |
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Caustic soda |
0.5~3g/L |
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Liquor ratio |
1:30 |
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| Treatment temperature and time |
90~95, 30~60min |
| Soaping (Anion exchange) |
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Anionic Soapoing agent |
5g/L |
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Prevention of yellowing
Hydrosulfite (used concurrently with soda ash) 2g/L (recommended) |
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Liquor ratio |
1:30 |
80~85, 20min |
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| 6. Packaging |
17kg can |
| 7. Handling |
Avoid contact with eyes, skin and clothing. Wear suitable protective equipment during operations. |
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