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2 protocols using n octanol

1

Cotton Fabric Dyeing with Reactive Dyes

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Commercially available ready-for-dyeing 100% cotton woven fabric (density: 127 ends and picks per cm; weight: 139 g/m2) was pre-washed with 2 g/L of home laundry detergent at 49 °C for 45 min, tumble-dried and conditioned for 24 h at standard environment (20 ± 2 °C and 65 ± 2%) before subsequent experiments. Non-ionic Tergitol type 15-S-12 (T15S12) secondary alcohol ethoxylated (SAE)-based biodegradable surfactant (CAS No.: 84133-50-6) (Figure 1) was purchased from Sigma Aldrich, St Louis, MO, USA. Octane (98+% purity) (CAS No.: 111-65-9) and n-octanol (>99% purity) (CAS No.: 111-87-5) were purchased from Alfa Aesar. They were of reagent grade. Sodium chloride (NaCl) (CAS No.: 7647-14-5) was purchased from VWR and used in a conventional water-based dyeing system only. Sodium carbonate anhydrous (soda ash, Na2CO3) (CAS No.: 497-19-8) was purchased from Sigma Aldrich. Warm-type reactive dyes of Levafix Red CA (RCA), Levafix Blue CA (BCA) and Levafix Yellow CA (YCA) were purchased from Dystar, China, and used as received.
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2

Evaluation of Surfactants and Phospholipids

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Bis(2-ethylhexyl) phosphate,
dibenzyl phosphate, mono-n-dodecyl phosphate, n-octanol, sodium 1-dodecane sulfonate, sodium n-hexadecyl sulfate, sodium n-octyl sulfate, sodium
1-pentyl sulfate, and taurocholic acid sodium salt hydrate were purchased
from Alfa Aesar (Germany). Sodium 1-octanesulfonic acid sodium salt
monohydrate (sodium 1-octane sulfonate) was received from MP Biomedicals
(France). 6, 9-Diamino-2-ethoxyacridine-dl-lactate monohydrate
(ethacridine lactate salt), dihexadecyl phosphate, 1,2-dioleoyl-sn-glycero-3-phosphate
sodium salt (DOPA), 4-(2-hydroxyethyl)piperazine-1-ethanesulfonic
acid (HEPES), hexadecyl phosphonic acid, oleyl alcohol, potassium
cetyl phosphate, sodium 1-butanesulfonate suitable for ion pair chromatography,
sodium docusate (purum), sodium dodecylbenzene sulfonate, sodium 1-heptane
sulfonate, sodium hexane sulfonate, and Tween 80 (polyoxyethylene
(20) sorbitan monooleate) were obtained from Sigma Aldrich (Austria).
Kolliphor EL (Cremophor EL) and medium chain triglycerides (Labrafac
lipophile WL 1349) were kind gifts from BASF (Germany) and Gattefossé
(France), respectively. SpectraPor Float-A-Lyzer G2 Dialysis Devices
(MWCO 3.5–5 kD) were purchased from Lactan (Austria).
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