SINARSCOUR SSB -Detergent and Wetting Agent for Pretreatments.
SINARSCOUR SSB (Detergent and Wetting Agent) are used as bleach processor enables extremely transparent processes. Pretreatment recipes consisting of three components only are possible: caustic soda, hydrogen peroxide and SINARSCOUR SSB Dertergent and Weting Agent as bleach processor On cellulosic fibers and their blends with synthetic fibers including elastane:
- Pad-batch cold peroxide bleach (pad-batch CPB), silicate-free and silicate containing
- Pad-batch cold oxidative cracking (pad-batch COC)
- Pad-steam peroxide bleach, silicate-free and silicate containing
- Discontinuous bleaching with hydrogen peroxide On 100% viscose fabrics:
- Visco-combi-batch (VCB)
| Characteristics | Benefits |
| Outright ALL-IN-ONE combination product: processor + surfactant + dispersing/complexing components. | No separate additions required, even no Mg- salts. Can be used in soft or hard water. Extremely transparent and simple recipes. Hence reduced sources of errors and less products for store-keeping. |
| Enables fast and uniform wetting with a high liquor pick-up. Even and highly hydrophilic fabrics for subsequent dyeing and printing processes. Removal of all kinds of impurities (e.g. oils, greases, lubricants, size and soil particles). |
| Extremely low-foaming, contains no antifoam. | Stable application liquor without risk of separation, also in reinforced feeding bath. Trouble-free running and low foam behavior on continuous and semi-continuous and discontinuous machines throughout processing. |
| Liquid, pumpable formulation. Convenient handling. Suitable for automatic dispensing of the undiluted product. | |
PROPERTIES of SINARSCOUR SSB (Detergent & Wetting Agent):
| Chemical constitution | Preparation of complexing/dispersing components mixed with surfactants and peroxide regulating additives, free of APEO. |
| Ionic character | Nonionic |
| pH (10 g/l) | About 5.5 |
| Specific gravity at 20°C | About 1.1 |
| Physical form | Liquid |
| Storage stability | SINARSCOUR SSB (detergent and Wetting agent) is stable for 1 year when properly stored in closed containers at 20°C. The product is sensitive to temperatures below 0°C and above 40°C. |
| Stability to alkali | 250 g/l NaOH 100% |
| Stability to oxidants | Very good |
| Viscosity (Rheomat 180, 21°C) | < 500 mPas |
| Conductivity (tel quel, 20°C) | About 15 mS/cm |
| Ecology/toxicology | The usual hygiene and safety rules for handling chemicals should be observed in storage, handling and use. The product must not be swallowed. |
| For further information on SINARSCOUR SSB – especially particulars regarding safety when handling, toxicological and ecological data – please consult our product specific safety data sheet. |
APPLICATIONS of SINARSCOUR SSB on Pretreatment process as Detergent and Wetting agent:
Dissolving/diluting:
SINARSCOUR SSB bleach processor can be added undiluted to the application baths and feed liquors. It can also be mixed with water in all proportions. The bleaching bath is to be set in the following sequence: water, SINARSCOUR SSB, NaOH and finally peroxide.
Suggested recipes:
Silicate-free pad-batch cold peroxide bleach (pad-batch CPB) cotton, linen, ramie and their blends with synthetic fibers
| 9–15 | ml/kg | SINARSCOUR SSB |
| 25–35 | g/kg | NaOH 100% |
| 40–60 | ml/kg | H2O2 35% |
| 0– 5 | g/kg | persulfate (preferably sodium persulfate) |
Bath temperature 20–35°C
Liquor pick-up 90–100%
Batching time 16–24 h
Aftertreatment, if no pad-steam or under liquor treatment follows:
The following treatment has proved effective for high, uniform absorbency and complete removal of sizes:
Continuous boiling-off in washing machines or immersion cloth accumulators. The first few baths should be sharpened with alkali and surfactant. The quantities are obtained from the residues on the goods. The throughput of water in these first baths must be reduced to 1–3 l/kg goods.
Sharpen the first few baths of the washing machine or immersion cloth accumulator with:
| 6–10 | g/l | NaOH 100% |
| 3–6 | ml/l | SINARSCOUR SSB |
Reaction time open-width washing machine: 30–60 s
immersion cloth accumulator: about 5 min
Temperature 90–95°C Hot wash-off
With this procedure, there is no need for additional continuous chemical feed.
Silicate containing pad-batch cold peroxide bleach (pad-batch CPB) cotton, linen, ramie and their blends with synthetic fibers:
| 8–12 | ml/kg | SINARSCOUR SSB |
| 8–15 | g/kg | NaOH 100% |
| 6–12 | ml/kg | sodium silicate 38°Bé (72°Tw) |
| 40–60 | ml/kg | hydrogen peroxide 35% |
| 0– 5 | g/kg | persulfate (preferably sodium persulfate) |
Bath temperature 20–35°C
Liquor pick-up 90–100%
Batching time 16–24 h Hot rinsing
A subsequent pad-steam or under liquor treatment is recommended for woven goods.
Pad-batch cold oxidative cracking (pad-batch COC):
| 9–12 | ml/kg | SINARSCOUR SSB |
| 30–40 | g/kg | NaOH 100% |
| 20–40 | ml/kg | H2O2 35% |
| 3– 6 | g/kg | persulfate (preferably sodium persulfate) |
Bath temperature 20–35°C
Liquor pick-up 90–100%
Batching time 6–24 h
Hot washing, it is possible to obtain best degrees of whiteness with a subsequent pad-steam peroxide bleach.
Pad-steam peroxide bleaching on cellulosic fibers and their blends with synthetics:
Following pad-steam recipes valid for cotton goods.
For PES/CO blends the recipes should be reduced by about 30%. A polyamide protective agent is recommended for PA/CO blends.
Pad-steam MEGA BLEACH on desized material
| 9–12 | ml/kg | SINARSCOUR SSB |
| 15–25 | g/kg | NaOH 100% |
| 30–60 | ml/kg | hydrogen peroxide 35% |
Cold impregnation High-add-on applicator or with conventional saturator
Steaming for 15–25 min at 100°C under saturated steam conditions Hot wash of
Silicate-free pad-steam peroxide bleach on desized and alkaline scoured material or on pad-batch cold peroxide bleached material
| 9– 7 | ml/kg | SINARSCOUR SSB |
| 6–20 | g/kg | NaOH 100% |
| 20–50 | ml/kg | hydrogen peroxide 35% |
Cold impregnation Steaming for
Hot wash off
High-add-on applicator or conventional saturator 30–2 min at 100°C under saturated steam conditions
Silicate containing pad-steam peroxide bleach on desized and alkaline scoured material or on pad-batch cold peroxide bleached material
| 9– 5 | ml/kg | SINARSCOUR SSB |
| 3–10 | g/kg | NaOH 100% |
| 12– 3 | ml/kg | sodium silicate 38°Bé |
| 20–50 | ml/kg | hydrogen peroxide 35% |
Cold impregnation High-add-on applicator or conventional saturator Steaming time 45–2 min
Temperature 100°C, saturated steam Washing off as hot as possible
Pad-steam peroxide bleach long time with silicate on desized and possibly alkaline scoured material, e.g. pad-roll and j-box
| 7– 9 | ml/kg | SINARSCOUR SSB |
| 6– 2 | g/kg | NaOH 100% |
| 5–12 | ml/kg | sodium silicate 38°Bé |
| 20–10 | ml/kg | hydrogen peroxide 35% |
Cold impregnation
Steaming time 45 min–3 h Temperature 100°C, saturated steam Hot wash off
Discontinuous peroxide bleach:
cellulosic fibers and their blends including elastane
| 0.5– 3.0 1.0– 1.5 | g/l ml/l | NaOH 100% SINARSCOUR SSB |
| 2.0–10.0 | ml/l | H2O2 35% |
An addition Sinarwhite 4BK is required for full white.
| Liquor ratio | 4 : 1–20 : 1 | |
| Temperature | 90–98°C | (high Temperature up to 115°C, ULTRA BLEACH) |
| Reaction time | 20–60 min | (up to 20 min for ULTRA BLEACH) |
As an aftertreatment, to eliminate all residual peroxide and to ensure a trouble-free subsequent dyeing, SINVATEX® PC or the catalase INVAZYME® Sinarzyme AB in combination with Sinvatex-AC should be applied. See the respective technical data sheet for further details.
Visco-combi-batch process (VCB)
Combination method with good handle retention for simultaneous desizing, bleaching, and causticizing of viscose piece goods
9–12 ml/kg SINARSCOUR SSB
40 g/kg NaOH 100%
8–15 ml/kg H2O2 35%
Bath temperature room temperature (20–30°C) Liquor pick-up 90–110%
Batching time 6–24 h Hot rinsing
