Textiles / Solution Family

Silicone & Polyethylene Softeners

Amino-functional silicone, amodimethicone, and dimethicone emulsions plus a polyether-modified trisiloxane u2014 durable soft hand, sewing lubricity, and hydrophilic finishing for cotton, knits, and synthetics.

Overview

Silicone softeners are emulsified polysiloxane finishes applied at the end of wetnprocessing to give fabric a smooth, low-friction hand, better drape, and easier sewing.nThe textile workhorses are the amino-functional silicones u2014 amino-functional silicone fluidn(CAS 71750-80-6) and amodimethicone (CAS 68037-59-2) u2014 whose amine groups anchor to the fibernfor a durable, silky dry hand. Apply them by pad or exhaust as a dilute emulsion; they are notnused neat.

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Where cost or a softer slip matters more than wash durability, plain dimethicone (PDMS, CASn9006-65-9) emulsions deliver lubricity and surface smoothness at lower price than the aminongrades. The functional split is straightforward: amino silicones bond to the fiber and survivenwashing, while non-functional dimethicone sits on the surface and gives the slickest initialnhand. Blend the two when a finish needs both a premium hand and laundering durability.

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The honest trade-off with amino silicones is hydrophilicity and shade. Their durable handncomes at the cost of water absorbency, and the amine can yellow on heat-setting or with certainndyes. Where the fabric must wick u2014 activewear and performance synthetics u2014 a polyether-modifiedntrisiloxane (CAS 27306-78-1) gives a softer, more hydrophilic finish and acts as a super-wetter,ntrading some of that signature dry hand for moisture management. Choose the chemistry by endnuse, not by hand alone.

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Where it's used
  • Durable soft-hand and drape finishing of cotton, knits, and blends
  • Sewing lubricity and needle-cut reduction on cut-and-sew fabric
  • Hydrophilic / moisture-wicking softening of activewear and synthetics
  • Smoothness and anti-friction finishing for towels, sheeting, and apparel
  • Wetting and soft-hand boosting in pad-finish baths via silicone surfactant
Frequently asked questions
What are silicone softeners and how do they work on fabric?
Silicone softeners are dilute emulsions of polysiloxane fluids applied at the end of wet processing to lower fiber-to-fiber friction, giving a smooth hand, better drape, and easier sewing. Amino-functional types (amino silicone, amodimethicone) anchor to the fiber for a durable hand; non-functional dimethicone sits on the surface for slip; polyether-modified silicones add a softer, more water-absorbent finish.
What is the difference between amino silicone and dimethicone softeners?
Amino-functional silicones and amodimethicone carry amine groups that bond to the fiber, so the soft hand survives repeated laundering. Plain dimethicone (PDMS) is non-functional: it gives the slickest initial slip and lubricity at lower cost but is less wash-durable. Many finishes blend the two to get both a premium hand and laundering durability.
Which silicone softener keeps fabric absorbent for activewear?
A polyether-modified trisiloxane gives a soft, hydrophilic finish that preserves moisture wicking, unlike amino silicones, which build a durable hand but reduce water absorbency. It also acts as a super-wetter. Specify it where moisture management on synthetics matters more than the signature dry hand of amino grades.
Does RawSource supply textile silicone softeners in bulk?
Yes. RawSource sources amino-functional silicone, amodimethicone, dimethicone, and polyether-modified trisiloxane in bulk, each with a verified CAS number and SDS/TDS documentation. Send fiber type, target hand, and any hydrophilicity or non-yellowing requirement with your RFQ for grade matching.
Disclaimer. Information on this page is provided for general reference and compiled from authoritative public sources (e.g. PubChem/ECHA). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot you purchase governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim. Always consult the current Safety Data Sheet (SDS) before handling, and confirm regulatory status, classification, and suitability for your application and jurisdiction.
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