 |
Nippon Kayaku Co., Ltd. |
| |
Dyeing of polyester/polyurethane blends |
|
RC agent Kayasoaper URE
Kayasoaper URE is an RC agent, highly effective for polyester stain removal of disperse dyes.
<The characteristics of Kayasoaper URE>
-
| Appearance: |
Yellowish brown liquid (Solidifies below 5 °C) |
| Component: |
Nonionic activator (HLB: approx.15) |
| pH value: |
Approx. 9 (2g/L water solution) |
| Solubility: |
Dissolves in water, but rather slowly_ use hot water (80° C+), in quantity of more than 5 times of the Kayasoaper URE amount used. |
<The effects of disperse dye stain removal from polyurethane by RC with the use of Kayasoaper URE>
By adding Kayasoaper URE in RC, disperse dye stains on polyurethane are most effectively removed leaving hardly any remains or any possibility of adverse effects cast on the following stages.
[Dyeing conditions]
-
| -Substrate: |
100% polyester cloth and 100% polyurethane yarn(weight ratio 80/20) dyed in the same bath |
| -Dye: |
Kayalon Polyester Black KLW 4.0% o.w.f |
| -Liquor ratio: |
1:15 |
| -Dyebath pH: |
4.5 |
| -Dispersant/leveling agent: |
0.5g/L |
| -Kayaresister UN: |
1g/L |
| -Temperature & time: |
120°C, 60 min. |
[RC conditions]
[Remains of RC agent on cotton/polyester]
Remains of RC agent on white cotton/polyester verified after RC under above conditions, acid dyeing (Kayacyl Blue HRL) at room temperature and rinsing.
| RC agent |
Polyester/ Polyurethane
(80/20) |
Remains on fiber |
| Cotton staining |
Polyester staining |
| None |
 |
 |
 |
Other Company's
product A 3g/L
(anionic) |
 |
 |
 |
Kayasoaper
URE 3g/L
(nonionic) |
 |
 |
 |
Other Company's
product B 3g/L
(weak cationic) |
 |
 |
 |
Other Company's
Product C 3g/L
(cationic) |
 |
 |
 |
<Kayasoaper URE's removal effect and amount used>
Dyed under above conditions
RC agent
amount used |
1g/L |
3g/L |
6g/L |
Other company's product A
(anionic) |
 |
 |
 |
Kayasoaper URE
(nonionic) |
 |
 |
 |
<Bleeding in dry cleaning under RC conditions:
Dyed polyester/polyurethane>
[Substrate]
Polyester/polyurethane (86/14):
Dry-cleaning tests were carried out after dyeing with Kayalon Polyester Black KLW (4.0% o.w.f) at 120°C for 60 minutes, reduction clearing and heat-setting at 160°C for 2 minutes.
[RC conditions]
Liquor ratio 1:20, hydrosulfite was used for A-D and thiourea dioxide for E-H.
| A) |
 |
Hydrosulfite
Caustic soda (flakes)
Other company's product A
80°C 20 min.
|
5g/L
3g/L
3g/L |
E) |
|
Thiourea dioxide
Caustic soda (flakes)
Other company's product A
90°C 20 min. |
3g/L
3g/L 3g/L |
| B) |
|
Hydrosulfite
Caustic soda (flakes)
Other company's product B
80°C 20 min. |
5g/L
3g/L
3g/L |
F) |
|
Thiourea dioxide
Caustic soda (flakes)
Other company's product B
90°C 20 min. |
3g/L
3g/L 3g/L |
| C) |
|
Hydrosulfite
Caustic soda (flakes)
Sample No.308
80°C 20 min.
|
5g/L
3g/L
3g/L |
G) |
|
Thiourea dioxide
Caustic soda (flakes)
Sample No.308
90°C 20 min. |
3g/L
3g/L
3g/L |
| D) |
|
Hydrosulfite
Caustic soda (flakes)
Kayasoaper URE
80°C 20 min.
|
5g/L
3g/L
3g/L |
H) |
|
Thiourea dioxide
Caustic soda (flakes)
Kayasoaper URE
90°C 20 min. |
3g/L
3g/L
3g/L |
 |
| |
|
Ionicity |
| Other company's product A |
: |
Anionic |
| Other company's product B |
: |
Weak cationic |
| Sample No.308 |
: |
Nonionic |
| Kayasoaper URE |
: |
Nonionic |
|
<Dyeing of polyester/polyurethane:
Influence on fastness caused by dyeing and RC conditions>
| [substrate] |
Polyester/polyurethane (76/24) union knit
Dyeing at pH4.5, 120°C for 60 minutes,RC at 90°C for 20 minutes and heat-setting at 160°C for 2 minutes. |
| [Recipes] |
i ) |
Dyeing:
RC: |
Kayaresister UN
Other company's product A |
None
Added |
| |
ii ) |
Dyeing:
RC: |
Kayaresister UN None
Kayasoaper URE Added |
| |
iii) |
Dyeing:
RC: |
Kayaresister UN Added
Kayasoaper URE Added |
(Click to enlarge)
|
|
|