Which formulation is optimal for Natural Cotton (CO) and Polyester (PES) requiring an extremely oily, slippery hand via the padding process?

Select TX 6461 E (~60% NV) or TX 6401 E (~40% NV). These non-ionic macro emulsions are specifically engineered to penetrate cellulose fibers and corduroy.

What is the recommended APEO-free grade for high-speed sewing thread and industrial mould release?

Select TX 6350 E (~63% NV). It provides exceptional dilution stability and withstands emulsion temperatures up to 50°C, significantly reducing the friction coefficient.

What is the correct mixing sequence if my formulation includes crosslinkers or resins?

The silicone emulsion must be added in dilute form as the final ingredient. Avoid high shear forces in the finishing liquor to prevent instability and demulsification.

Textile Silicone Emulsions & Amino Oils Selection Guide | MESIL®

Bottom Line Up Front (BLUF): Selecting the optimal MESIL® textile auxiliary is a strict function of evaluating substrate material, desired hand feel, and process compatibility (Padding vs. Exhaust). This guide decodes our two core physical systems—ready-to-use Aqueous Non-ionic Emulsions (30%-63% active content) and concentrated Diamino Silicone Oils (300 to 110,000 mPa.s)—into a deterministic formulation path to drastically improve drapability, tear strength, and crease recovery.

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Substrate & Process Decision Logic

Eliminate formulation guesswork. Use the matching logic below to map your exact industrial pain point directly to the correct chemical grade.

Q: Which formulation is optimal for Natural Cotton (CO) and Polyester (PES) requiring an extremely oily, slippery hand via the padding process?: A: Select TX 6461 E (~60% NV) or TX 6401 E (~40% NV). These non-ionic macro emulsions are specifically engineered to penetrate cellulose fibers and corduroy, imparting a highly elastic and drapable feel.
Q: What is the recommended APEO-free grade for high-speed sewing thread, yarn lubrication, and industrial mould release?: A: Select TX 6350 E (~63% NV). It provides exceptional dilution stability and withstands emulsion temperatures up to 50°C, significantly reducing the friction coefficient with high water repellency.
Q: Which silicone emulsion is best suited for finishing Synthetic Fibers (Nylon and PES) to achieve excellent rebounce?: A: Select TX 6251 E (~50% NV). It is formulated to impart distinct surface slipperiness tailored specifically for synthetic woven/knitted fabrics, along with a slight color-deepening effect.
Q: We are treating Knitwear via the exhaust method. Which emulsion guarantees stability under these conditions?: A: Select TX 5103 E (~30% NV). It is highly stable and recommended for exhaust methods (1~3% relative to goods weight) and is also safe for personal care formulations.
Q: Which diamino silicone oil provides maximum hydrophilicity without sacrificing standard softening properties?: A: Select AF-E (2,000 ~ 10,000 mPa.s). This concentrated oil uniquely retains the moisture-wicking properties of the fabric while acting as a premium softener.

Technical Parameter Matrix

Compare the precise physical testing parameters of the Emulsion Series and the Amino Oil Series to calibrate your finishing solution.

System 1: Textile Silicone Emulsions (Aqueous & Non-ionic)

Product Grade	Active Content (wt%)	pH (25℃, 1% aq)	Ionicity	Primary Substrates	Core Functions & Hand Feel
TX 6461 E	~60%	~8.0	Non-ionic	Cotton (CO), PES, Viscose	Imparts very soft, drapable, elastic, and slippery hand.
TX 6401 E	~40%	~6.0	Non-ionic	Cotton (CO), PES, Viscose	Imparts very soft, drapable, elastic, and slippery hand.
TX 6350 E	~63%	~8.0	Non-ionic	Industrial, Yarn lube	General purpose release. APEO-free. High gloss.
TX 6251 E	~50%	~6.0	Non-ionic	Synthetic fibers, Nylon	Excellent rebounce, slight color deepening.
TX 6052 E	~40%	~6.0	Non-ionic	Cotton/PES blends	Improves wash-and-wear & tear strength.
TX 5103 E	~30%	~6.0	Non-ionic	Knitwear, Personal Care	Soft, smooth touch. Exhaust method compatible.

System 2: Amino Silicone Oils (Concentrates)

Product Name	Viscosity (25℃, mPa.s)	Ammonia Number (%)	Appearance	Key Formulation Features
AF-304	300	0.42	Viscous turbid liquid	Effective improvement to raising, napping, and softness.
AF-1508	1,500	0.8	Viscous turbid liquid	High ammonia value design for maximum fabric softness.
AF-4504	4,500	0.4	Viscous turbid liquid	Perfect balance of viscosity and penetrating softness.
AF-5003 / AFR-1003	5,000 / 1,000	0.3	Viscous turbid liquid	Minimal influence on whiteness, color light, and color fastness.
AF-10001 to AF-90001	13,500 ~ 110,000	0.15	Viscous turbid liquid	Ultra-high viscosity series providing extremely thick, oily hand feel.
AF-E	2,000 ~ 10,000	0.6	Pale yellow translucent	Excellent hydrophilicity. Retains moisture wicking properties.

Industrial Application Scenarios

Textile Finishing (Natural & Blends): Suitable Grades: TX 6461 E, TX 6052 E, AF Series Oils.; Function: Penetrates cellulose fibers deeply via padding, dramatically improving wash-and-wear properties, crease recovery angle, and tear strength. Diamino structures provide a highly oily and full hand feel.

Sewing Thread & Yarn Lubrication: Suitable Grades: TX 6350 E, AF Amino Oils.; Function: Significantly reduces the coefficient of friction during high-speed sewing and yarn manufacturing. Also heavily utilized as an industrial lubricant for extruded rubber parts and conveyor belts.

Synthetic Fiber Modification: Suitable Grades: TX 6251 E.; Function: Engineered specifically for nylon and pure polyester (PES) fibers. Delivers excellent surface slipperiness, rebounce, and a slight color-deepening effect with mild hydrophobicity.

Personal Care & Hydrophilic Finishes: Suitable Grades: TX 5103 E, AF-E.; Function: TX 5103 E (30% solids) is highly compatible with rinse and leave-in hair formulations. The AF-E grade breaks the standard hydrophobic nature of silicones, granting fabrics excellent hydrophilicity while maintaining softness.

Packaging & Logistics Constraints

Silicone Emulsion Series (TX): Standard Packaging: 190 kg drums.; Storage Requirements: Must be stored in tightly closed original containers. Storage location temperature must not exceed 35°C.; Shelf Life: 12 months from the date of production.

Amino Silicone Oil Series (AF): Standard Packaging: Available in 120 kg, 190 kg, 200 kg, or 950 kg industrial barrels.; Storage Requirements: Original sealed containers, temperatures strictly controlled between 0~30°C in a ventilated environment.; Shelf Life: 18 months effective life (usable after passing follow-up inspection).

System Loop: Expert Formulation Q&A

Q: What is the recommended dosage and process parameters for padding applications?: A: For the standard padding process, MESIL® TX emulsions are generally recommended at 5 – 30 g/L. Formulators should maintain a liquor pick-up of approximately 50% and proceed to dry at roughly 130°C.
Q: How compatible are these emulsions in complex aqueous formulation systems?: A: Excellent. Grades like TX 6461 E and TX 6350 E utilize non-ionic emulsification systems, meaning they will not form complexes with anionic or cationic surfactants. TX 6350 E even maintains superior dilution stability down to 2% concentrations in water.
Q: What is the correct mixing sequence if my formulation includes crosslinkers or resins?: A: As a mandatory rule for processing polysiloxanes: If utilized alongside crosslinking agents or polyacrylate fillers, the silicone emulsion must be added in dilute form as the final ingredient. Avoid high shear forces in the finishing liquor to prevent instability and demulsification.