| HS Code | 856499 |
| Appearance | Milky white to translucent liquid |
| Form | Liquid |
| Ionicity | Weak cationic / nonionic |
| Phvalue | 5.0–7.0 (1% aqueous solution) |
| Solidcontent | 30% ± 1% |
| Viscosity | 500–2000 mPa·s at 25°C |
| Watersolubility | Soluble or readily dispersible in water |
| Dilutionstability | Stable after dilution with water |
| Hydrophilicity | Good hydrophilic performance |
| Handfeeling | Soft and smooth hand feeling |
| Softness | Good softness |
| Smoothness | Good smoothness |
| Yellowingtendency | Low yellowing tendency |
| Storagestability | Stable under normal storage conditions |
As an accredited Good Hand Feeling Hydrophilic Silicone Oil RH-NB-8098-6 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Good Hand Feeling Hydrophilic Silicone Oil RH-NB-8098-6 is packed in 120 kg plastic drums for safe storage and transport. |
| Container Loading (20′ FCL) | 20′ FCL container loaded with Good Hand Feeling Hydrophilic Silicone Oil RH-NB-8098-6, securely packed and labeled for chemical shipment. |
| Shipping | Good Hand Feeling Hydrophilic Silicone Oil RH-NB-8098-6 is shipped in securely sealed, properly labeled plastic drums or IBC totes. Transport in a cool, dry, ventilated area, protected from direct sunlight, freezing, and moisture. Keep containers closed until use, follow the SDS and local regulations, and prevent leaks, tipping, or contamination. |
| Storage | Store in a cool, dry, well-ventilated area away from direct sunlight, heat, sparks, and open flames. Keep containers tightly closed, upright, and clearly labeled; prevent freezing, moisture, and contamination. Use appropriate secondary containment and segregate from incompatible materials. Store only in original containers and follow the manufacturer’s SDS and local regulations. |
| Shelf Life | Typically 12 months in original sealed packaging, stored at room temperature in a cool, dry, well-ventilated place, away from sunlight and moisture. |
After reactive dyeing and soaping in a soft-flow dyeing machine at a liquor ratio of 1:8, the residual electrolyte in the exhaust bath from sodium sulfate and sodium carbonate fixation commonly exceeds 10 mS/cm; the bath is therefore drained, refilled, and neutralized with 0.5 g/L acetic acid at 40 °C for 10 min. RH-NB-8098-6 is introduced at 2.0–3.0% o.w.f. on 100% cotton single jersey of 180 g/m², after confirmed bath pH of 5.5–6.0 and temperature not exceeding 35 °C. The finish is circulated for 20 min, then the fabric is extracted to 65% residual moisture and dried in a relax dryer at 85 °C fabric surface temperature. Dosage above 4.0% o.w.f. does not produce a linearly softer handle; instead the vertical wicking height measured on a 5 cm strip according to AATCC TM79-2018 after 5 min typically drops by 15–20% relative to the 3.0% o.w.f. condition on compacted interlock, a cliff-edge effect arising from excess silicone film coverage that narrows inter-yarn capillary channels. Published data for this specific configuration is limited; the threshold is nevertheless reproducible across production lots when yarn twist and fabric density are controlled. The bath is not stable when calcium hardness exceeds 200 ppm CaCO₃; under such water quality, 0.3–0.5 g/L sodium citrate is added before the silicone to prevent emulsion haze and oily deposits on drum surfaces. Finished garments such as infant body suits and cotton underwear are expected to pass ISO 3071 extract pH 4.5–7.5, EN ISO 14184-1 formaldehyde ≤16 mg/kg for Class I skin contact, and ISO 105-C06 shade change ≥4.0 after five domestic washes.
| Test standard | Skin-contact target | Process boundary linked to RH-NB-8098-6 |
|---|---|---|
| ISO 3071 | pH of water extract 4.5–7.5 | Exhaust bath pH before dosing must be 5.5–6.0 |
| AATCC TM79-2018 | Sink time ≤5 s after one ISO 6330 wash | Add-on above 4.0% o.w.f. may impair capillary wetting |
| EN ISO 14184-1 | Formaldehyde ≤16 mg/kg for Class I | Cure temperature above 160 °C can shift formaldehyde release |
| ISO 105-C06 | Shade change ≥4.0 after five washes | Residual electrolyte above 10 mS/cm must be removed before finishing |
| ISO 105-X12 | Dry rubbing ≥4.0, wet rubbing ≥3.0 | Overloaded silicone film reduces surface crocking performance |
| REACH Annex XVII entry 46 | Nonylphenol ethoxylates not detected | Raw material selection excludes alkylphenol ethoxylates |
Continuous stenter pad finishing of 65/35 polyester/cotton poplin at 70% wet pick-up uses a working solution of RH-NB-8098-6 at 20–40 g/L. The pad trough is circulated by a diaphragm pump at 30 L/min; at concentrations above 60 g/L, air entrainment and high shear generate coagulated silicone particles visible as oily specks on the fabric selvedge. Therefore, the product is pre-diluted to a 10 wt% stock emulsion before addition to the bath, and mixing speed is limited to 120 rpm. A pH of 4.8–5.2 is maintained with acetic acid; a low-formaldehyde dimethyloldihydroxyethyleneurea crosslinker at 30 g/L and magnesium chloride catalyst at 6 g/L can be present without destabilizing the microemulsion. The fabric is dried at 110 °C in the first two chambers, cured at 160 °C for 90 s, and final residual moisture is held at 5–7%. The finished shirting must satisfy EN ISO 14184-1 formaldehyde below 75 mg/kg and ISO 105-C06 shade change at least 4.0 after five washes. Tensile loss according to ISO 13934-1 should remain below 15% against the untreated control. Terminal product is uniform shirting and corporate workwear where a dry, softly draped hand is required after repeated industrial laundering.
Terry towels bleached by exhaustion with hydrogen peroxide in a 1:10 liquor ratio are finished after two warm rinses. A final bath pH of 5.5–6.0 is critical because residual sodium silicate from peroxide stabilization, if not removed, can precipitate with the silicone at 40 °C. RH-NB-8098-6 at 1.5–2.5% o.w.f. is run for 15 min at 35 °C in a soft-flow machine. For 450 g/m² combed cotton terry, the finish reduces loop compression while retaining rewettability: sink time per AATCC TM79 should remain below 5 s after one wash at 60 °C per ISO 6330. Tumble drying at 75 °C exhaust air temperature preserves loop bulk better than cylinder drying at 130 °C contact temperature; line speed is reduced to 20 m/min on a six-drum dryer to avoid overdrying skin. Products are bathrobes and gym towels; compliance for skin contact requires pH of aqueous extract between 4.5 and 7.0 per ISO 3071 and absence of alkylphenol ethoxylates per REACH Annex XVII entry 46. High ambient relative humidity above 60% requires pre-drying to 8–10% residual moisture before application because excessive free moisture dilutes the finish and can produce center-to-selvedge shade migration after wet storage.
Garment processing in 250 kg front-loading washer-extractors requires deactivation of residual cellulase before the silicone is applied. After bio-polishing at 55 °C for 45 min, the bath is dropped and the machine is refilled at 80 °C for 10 min to denature residual enzyme; pH is adjusted to 6.0 with citric acid. RH-NB-8098-6 is then injected at 1.0–2.0% o.w.f. in a clean bath at 30 °C for 15 min. Strong anionic lubricants left from stone-washing can complex with the cationic emulsifier of the silicone and form deposits on the garment surface; if conductivity of the rinse bath exceeds 8 mS/cm, an additional overflow rinse is introduced before dosing. The softened garment, typically a 250 g/m² three-end fleece hoodie, is dewatered and tumble dried at 70 °C with residual moisture controlled to 8% before packing. The finished article must meet ISO 12945-2 pilling rating of grade 4 after 14400 rubs and ISO 105-X12 dry rubbing fastness of at least 4.0. Avoid combination with strong cationic resin fixatives above 5 g/L; viscosity increase and filter blocking on the washer-extractor drain screen have been observed at this boundary. Terminal product is casual fleece hoodies and joggers intended for machine-wash-resistant surface smoothness.
Lyocell twill sheeting of 120 g/m², after caustic-free fibrillation control, is processed on an open-width stenter with a 40 m/min line speed. Working bath contains RH-NB-8098-6 at 15–25 g/L, polyethylene softener at 8 g/L, and citric acid at 1 g/L to hold pH at 5.5. Wet pick-up is set to 75% using a pneumatic padder at 50 N/mm linear pressure. Drying is staged from 100 °C to 120 °C in the first three bays; final drying at 135 °C for 60 s in the last bay avoids over-cure that would embrittle lyocell fibrils. After conditioning at 20 °C and 65% relative humidity for 24 h, the fabric is tested according to ISO 13934-1 for tensile strength; loss should be below 10% against the untreated control. Bending length according to ASTM D1388 is used to confirm that the softener has not created a limp and non-resilient handle. Extract pH per ISO 3071 must remain 4.5–7.5. Terminal products are sateen bedsheets and duvet covers for hotel contract supply where low handle hysteresis after high-temperature tunnel finishing is a specification requirement.
For cotton/polyamide interlock fabrics of 160 g/m² used in intimate apparel, the low add-on foam route replaces pad application when migration to selvedges is a confirmed defect. A foam generator set to a blow ratio of 1:8 produces a wet add-on of 12% from a bath containing 30 g/L RH-NB-8098-6 and 0.5 g/L deaerator, with pH adjusted to 5.8 using citric acid. The foam collapses within 3–5 s on the fabric surface, after which a three-bay tenter dries at 110 °C with overfeed 2% and exhaust humidity 25–30%. This finishing route does not tolerate foaming agent residue; prior trial runs with sodium lauryl sulfate generated uneven wetting and reduced one-way transport capacity in AATCC TM195-2012. The finished garment is tested for ISO 105-E04 perspiration fastness at ≥4.0, AATCC TM79 wetting at ≤5 s, and seam tensile strength per ISO 13935-2 with loss ≤10%. Processing at pH above 8.5 is not recommended because siloxane backbone hydrolysis accelerates under alkaline thermal exposure. Terminal articles are sports bras, shaping briefs, and medical recovery undergarments requiring continuous moisture transport against the skin.
Yarn cones of 20/2 Ne cotton/nylon for full-fashion knitwear are conditioned to 8% regain before application. A spray cabin equipped with rotating cone mandrel and air-atomizing nozzles applies a 10 wt% aqueous dilution of RH-NB-8098-6 at 0.6–1.0% add-on, using 2.0 bar atomizing air and 1.5 bar liquid pressure. The cones are then dried in a radio-frequency dryer at 45 °C for 120 min to avoid thermal degradation. On a Rothschild F-meter at 100 m/min, yarn-to-metal friction is expected to decrease from typical unlubricated values near 0.22 to a lubricated window of 0.14–0.18; published data for this specific configuration is limited, but the reduction is sufficient for 24-gauge flat knitting. Add-on above 1.2% is rejected because needle gumming appears after approximately 2000 courses on multi-gauge machines. The spin finish system must be free of mineral oil above 0.5% residual on yarn, because mineral oil co-emulsification raises cone surface tack. Terminal product is fully-fashioned sweaters and collars for wool-blend outerwear. Compliance for yarn lubricity additives is evaluated under REACH Regulation 1907/2006/EC and ZDHC MRSL v3.1; the formulation should not contain alkylphenol ethoxylates or chlorinated solvents.
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Good Hand Feeling Hydrophilic Silicone Oil RH-NB-8098-6 is a polyether-modified polysiloxane preparation supplied for textile finishing operations where a dry, elastic surface hand must be combined with sustained water absorbency on cotton, regenerated cellulose, and cellulosic blended knits. The product is not a conventional amino silicone microemulsion: its siloxane backbone carries pendant polyether chains that lower the fabric surface contact angle after curing while retaining softness properties. It is typically applied by pad-cure or exhaust routes in finishing plants producing underwear, athletic wear, toweling, and shirting. The representative receiving-inspection data in the table below are derived from the manufacturer’s technical data sheet and should be verified against each batch certificate of analysis.
| Appearance | Pale yellow translucent liquid, no visible mechanical impurities | Visual |
| pH, 10% aqueous dispersion | 5.5–7.0 | ISO 4316 |
| Non-volatile content | 59.0–61.0% | ISO 3251, 105 °C, 2 h |
| Viscosity at 25 °C | 800–2000 mPa·s | ISO 2555, Brookfield LV, spindle 2, 60 rpm |
| Density at 25 °C | 0.99–1.03 g/cm³ | ISO 2811 |
| Ionic character | Weak cationic/nonionic | Internal titration |
| Water dispersibility | Disperses in water below 40 °C; translucent to milky dispersion | Visual after dilution |
| Shelf life in sealed original container | 12 months at 5–35 °C | Manufacturer stability protocol |
Before use, the product is diluted by adding the oil to cold water under slow propeller agitation. Addition of concentrated product into a strongly anionic bath or into water above 40 °C can produce localised emulsion inversion and pad-roll deposits. If the product is stored below 5 °C, viscosity increases reversibly; drums should be conditioned to 20–25 °C before transfer.
The processing envelope differs in three respects: lower cure severity, narrow pH control, and lower shear tolerance than high-amino macroemulsions.
For pad-cure application on cotton single jersey or interlock, the finish bath is prepared with 10–40 g/L RH-NB-8098-6, adjusted to pH 5.5–6.5 with acetic acid. Horizontal pad mangle wet pickup of 65–80% is typical; pickup above 85% can cause migration during the early drying section of a stenter frame. Drying at 110–130 °C for 60–100 s is followed by curing at 150–170 °C for 60–120 s. The lower curing threshold is sufficient because the polyether-modified polymer self-orients at lower thermal energy than amino functional oils; published data for this specific configuration is limited, and plant trials should confirm the minimum dwell for the fabric weight and oven air velocity.
Exhaust finishing on soft-flow or jet dyeing machines is conducted at 1–3% o.w.f. at 35–45 °C for 20–30 min, pH 5.0–6.0. The product shows salt and alkali sensitivity; therefore, acetic acid neutralization and thorough rinsing of residual carbonate after dyeing are required. Observed batch-to-batch viscosity variation is normally within ±150 mPa·s, but pre-dilution before addition to the machine minimizes visible reservoir float and filter blocking.
Shear stability is adequate for circulation pumps but not for high-energy homogenizers. High-shear agitation above 3,000 rpm for more than 30 min can reduce emulsion particle size uniformity and increase foam formation. Low-foam wetting agents approved for use with nonionic systems should be used; silicone antifoams are generally not required below 40 g/L.
The performance difference between RH-NB-8098-6 and a conventional amino silicone macroemulsion is controlled by the ratio of pendant polyether segments to amino-functional siloxane blocks. In conventional amino fluids, terminal or pendant amine groups protonate on cotton and produce a hydrophobic silicone film with high slip and low wetting. The polyether modification in RH-NB-8098-6 introduces oligoethylene oxide side chains that reduce the water contact angle of the cured film; after curing, moisture transport through the film is governed by a higher diffusion coefficient than through polydimethylsiloxane homopolymer. The trade-off is that extreme gliding softness is slightly lower than with high-amino fluids, but this product avoids the rapid absorbency loss that occurs after multi-cycle home laundering.
Representative comparative data on bleached cotton single jersey 160 g/m² are shown below. The treatment used a pad bath concentration of 30 g/L, wet pickup 70%, drying at 120 °C for 60 s, and curing at 160 °C for 90 s. Values are screening-level and should be verified on the relevant fabric construction.
| Property / evaluation cycle | RH-NB-8098-6 | Amino silicone macroemulsion | Nonionic polyethylene softener |
| Drop absorption after 0 washes, AATCC 79 | 2 s | >60 s | 1 s |
| Drop absorption after 5 washes, ISO 6330, 40 °C, line dry | 4–6 s | >60 s | 1–2 s |
| Whiteness change after 180 °C 90 s, AATCC 110 | -0.5 to -1.0 CIELAB units | -2.5 to -3.5 CIELAB units | -0.3 to -0.8 CIELAB units |
| Hand panel ranking, 1–5, higher is softer | 4.0 | 4.5 | 2.5 |
| Laundered durability after 10 washes, ISO 6330 | High | High | Low |
The hydrophilic durability of RH-NB-8098-6 is attributed to the covalent anchoring of siloxane segments onto cotton through condensation with cellulose hydroxyl groups during curing. In contrast, nonionic polyethylene emulsions rely on hydrogen bonding and surface deposition, which explains their lower washfastness. However, if the fabric is not thoroughly de-sized and scoured, residual waxes and pectins reduce the measured drop absorption regardless of the softener chemistry. Drop absorption measurements on finished fabric should follow AATCC 79 after conditioning according to ASTM D1776 at 21 ± 1 °C and 65 ± 2% relative humidity for at least 4 h.
Compatibility boundaries are set by charge and pH. The product is weak cationic/nonionic; strongly anionic auxiliaries including sulfonated oils, high-molecular-weight anionic fixing agents, and stilbene disulfonic acid optical brighteners should be screened before addition at concentrations above 5 g/L. Fluid charge reversal may occur in baths containing high levels of anionic dyes; this can produce oily roll deposits on pad mangles and reduced bath clarity. Cellulose-reactive fixatives based on blocked isocyanates can lower hydrophilicity if overdosed; laboratory screening in the actual finish bath is required because the interaction is pH-dependent and fabric-dependent. The product should not be premixed with concentrated caustic or strong mineral acid. In environments above 60% relative humidity, downstream migration can be minimised by curing to the upper end of the recommended window rather than by increasing the product dose.
For plant hygiene, tanks and pipes should be flushed after each batch. If the product is left in a circulating bath above 40 °C for more than 8 h, progressive viscosity reduction may occur due to slow hydrolysis of the siloxane bond; published data for this specific storage condition is limited. In jet exhaust machines with hydraulic shear, foam generation is lower than with high-amino fluids when bath pH is maintained below 6.0 and water hardness below 200 mg/L CaCO₃. In hard water above that level, the dispersion may require the addition of a compatible sequestering agent.
Compliance status should be confirmed from the supplier safety data sheet and product certificate. The preparation is reported in the supplier safety data sheet as not classified as dangerous under EU CLP; for European Union finishing plants, the downstream user obligations under REACH are to apply the risk management measures from the safety data sheet and maintain exposure scenarios. RoHS substance restrictions do not apply to textile softeners unless the finished textile is incorporated into electrical and electronic equipment; the absence of listed phthalates and heavy metals should nonetheless be verified by the mill’s compliance document system. The product itself is not intended as a food-contact substance. If used on textiles that contact dry food, the finished article must be evaluated under FDA 21 CFR 177.2800 or the applicable section; confirmation is the responsibility of the converter.
When the fabric is cured above 170 °C or stored in a hot, humid environment, the aromatic amino groups in conventional amino softeners are the main source of yellowing. RH-NB-8098-6 has a lower yellowing tendency because the amino content is reduced and the polyether segments act as hydrophilic spacers. On optically brightened white goods, the finish can be used in combination with low-formaldehyde melamine or DMDHEU resin at 20–40 g/L, provided the catalyst is magnesium chloride based rather than zinc chloride based. High zinc chloride levels above 8 g/L can produce uneven crosslinking and reduce the absorbency of the finish.
For regenerated cellulose such as viscose, modal, or lyocell, pad-batch application is not recommended because the product may stratify during extended dwell; pad-dry-cure is preferred. When lyocell fibrillated surfaces require a clean hand, the product is combined with air-jet tumbling after curing, but the dose should not exceed 30 g/L to avoid excessive surface feel reduction. No additional softening step on the same fabric should be performed with hydrophobic amino silicone oil because the two films differ in surface energy and may create uneven wetting after washing. Wash fastness is commonly evaluated by AATCC 61-2A or ISO 105-C06; after five cycles, the product retains measurable hydrophilicity and hand. Industrial end-users should specify test cycles because household detergents containing strong sequestrants can reduce film durability.
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