CoolSilk Cooling Yarn 30D–300D – Moisture-Wicking & Quick-Dry

CoolSilk cooling yarn uses engineered filament cross-sections to move moisture across the fabric surface, support faster drying, and create a cool-touch feel. Buyers can select modified polyester (PET) or nylon (PA6/PA66) according to the application.

  • Material: Modified PET or nylon PA6/PA66
  • Yarn type: DTY or FDY cooling filament yarn
  • Count range: Common specifications from 30D to 300D
  • Cross-section: Cross-shaped, Y-shaped, or multi-groove options
  • Applications: Sportswear, socks, seamless garments, underwear, linings, knitting, and weaving
  • Colors: Confirmed stock shades and custom color development
  • MOQ: From 1 kg per color for stock shades; normally 300 kg per color for custom production
  • Lead time: Stock orders normally ship in 1–2 days; custom production normally takes 10–15 days after confirmation
  • Packing: Woven bag or five-layer corrugated carton; normally 25 kg per package

Request a Quote

CoolSilk Cooling Filament Yarn for Moisture-Wicking and Quick-Dry Fabrics

CoolSilk cooling yarn uses shaped filaments to help fabrics move moisture, dry faster, and feel cool against the skin. Cross-shaped, Y-shaped, and multi-groove options create channels along the filament surface. These channels spread moisture over a wider area and support faster evaporation.

VI-TEX supplies modified polyester (PET) and nylon (PA6/PA66) options in DTY and FDY formats. Common counts range from 30D to 300D. Because each fabric and machine setup is different, we match the polymer, denier, filament count, luster, and intermingle level to the intended application before sampling.

Material options Modified polyester (PET) or nylon (PA6/PA66)
Yarn formats DTY or FDY filament yarn
Common count range 30D to 300D; ask us to confirm the exact denier and filament count
Filament structure Cross-shaped, Y-shaped, or multi-groove options
Main functions Moisture wicking, quick drying, and cool-touch performance
Typical applications Sportswear, socks, seamless garments, underwear, linings, knitting, and weaving

How CoolSilk Manages Moisture

When moisture reaches the fabric, the grooves in the shaped filaments provide capillary paths that help move and spread it. A wider wet area exposes more moisture to the air. As a result, moisture can evaporate faster and the fabric can feel drier during wear.

The filament structure forms the basis of the moisture-management function. However, the yarn alone does not determine the result. Polymer choice, fabric construction, fabric weight, dyeing, finishing, and washing all influence the final performance. For that reason, we recommend testing the finished fabric under the intended use and care conditions.

  1. Choose PET, PA6, or PA66 according to the application and dyeing requirements.
  2. Match the denier, filament count, luster, and intermingle level to the machine and fabric structure.
  3. Run a knitting or weaving trial under the planned production conditions.
  4. Test moisture wicking, drying time, Q-max, and wash durability with agreed methods.

Engineered Filament vs. Topical Moisture-Management Finish

The two approaches manage moisture in different ways. The comparison below explains those design differences; it does not replace a fabric test report.

Evaluation point Topical finish route CoolSilk shaped-filament route What to confirm
Function source Uses a selected moisture-management treatment Uses channels formed by the filament cross-section Check whether the finished fabric also needs a topical treatment
Moisture movement Depends on the treatment chemistry and application The channels help spread moisture along the filament surface Compare both options in the same fabric construction
After washing Depends on the finish chemistry and wash conditions The filament geometry remains, while measured fabric performance may still change Test before and after the required wash cycles
Cooling result Varies with the treatment, fabric, and test conditions Varies with the polymer, cross-section, yarn count, and fabric Agree on the Q-max method and use the actual test value

Applications and Yarn Selection

CoolSilk cooling filament yarn is suitable for circular knitting, warp knitting, seamless production, and weaving when the yarn specification matches the machine. To select a suitable option, please share the machine type, fabric structure, and end use.

  • Sportswear and base layers
  • Socks and seamless garments
  • Underwear and linings
  • Knitted and woven performance fabrics

CoolSilk can also be combined with cotton or spandex. However, the yarn position and fabric construction will affect the final hand feel and moisture movement, so we recommend a machine trial before bulk production.

Why Work with VI-TEX

Functional yarn development needs stable quality, clear specifications, and fast communication. VI-TEX keeps the discussion focused on the machine, fabric, performance target, and order requirements.

  • Yarn consistency: We focus on yarn uniformity and lot control to support stable knitting and weaving.
  • Clear specifications: We confirm the material, yarn format, count, filament construction, luster, and intermingle level before production.
  • Technical support: We review the machine type, fabric structure, application, and test requirements when recommending a specification.
  • Flexible supply: Buyers can begin with a stock sample for a machine trial, then move to custom or repeat bulk production after approval.

Technical Specifications

Product type Moisture-wicking, quick-dry cooling filament yarn
Material Modified polyester (PET) or nylon (PA6/PA66), selected according to the application
Yarn type DTY or FDY
Common count range 30D to 300D; custom specifications are subject to confirmation
Cross-section Cross-shaped, Y-shaped, or multi-groove
Luster Semi-dull, full-dull, or bright
Intermingle NIM, SIM, or HIM according to the knitting or weaving process
Tenacity Standard or high-tenacity options for different end uses
Colors Confirmed stock shades or custom color development

Samples, MOQ, and Lead Time

For confirmed stock shades, the minimum order starts from 1 kg per color. Stock orders normally ship within 1–2 days after confirmation. For custom production, the usual minimum is 300 kg per color, and production normally takes 10–15 days after we confirm the yarn specification and color.

To receive an accurate recommendation and quotation, please send the following details:

  • Required polymer: PET, PA6, or PA66
  • DTY or FDY, denier, and filament count
  • Luster, intermingle level, and color
  • Machine type and fabric structure
  • Target application
  • Estimated quantity and destination
  • Required test methods, certificates, packing, and labeling

Quality Confirmation, Certificates, and Packing

Before bulk production, VI-TEX confirms the agreed yarn specification, color standard, packing, labeling, and inspection requirements. We can also discuss fabric-test requirements for moisture wicking, drying time, Q-max, and performance after washing. This process helps both sides use the same approval standard.

OEKO-TEX information can be provided for applicable specifications. GRS documents may also be available for qualifying recycled options. Because certificate scope varies by product and order, please request the current certificate scope and supporting documents before making a compliance claim.

We normally pack the yarn in woven bags or five-layer corrugated cartons, with approximately 25 kg in each package. Sample and small-lot packing can be adjusted to the order size. Neutral labels, customized labels, and export packing are available after confirmation.

Frequently Asked Questions

Can I order CoolSilk quick-dry yarn in 30D?

Yes. 30D falls within the common 30D–300D range. VI-TEX can supply modified PET or nylon options, depending on the required fabric and dyeing route. Please confirm whether you need PET, PA6, or PA66, together with the filament count, luster, and intermingle level.

Does the cooling and moisture-wicking effect remain after repeated washing?

The shaped cross-section remains part of the filament after washing. However, the final fabric performance also depends on the polymer, construction, dyeing, finishing, and wash method. Therefore, test the finished fabric after the required wash cycles before approving a durability claim.

How does CoolSilk move moisture away from the skin?

The shaped filaments create channels that spread moisture over a wider surface. This larger exposed area supports faster evaporation. Fabric density and finishing can increase or reduce the measured effect, so the final fabric should be tested.

Can CoolSilk run on circular knitting, warp knitting, seamless, and weaving machines?

Yes, when the yarn specification matches the machine and fabric. Confirm the denier, filament count, intermingle level, finish, and package build first. Then run a machine trial before bulk production.

Can I use standard dyeing processes?

Polyester options normally use disperse dyes, while nylon options normally use acid dyes. Because polymer type, cross-section, and fabric construction can affect dye uptake, approve a lab dip and production settings before bulk dyeing.

How does CoolSilk differ from general ice silk yarns?

“Ice silk” is a broad market term that can describe different fibers and yarn structures. CoolSilk identifies the polymer, yarn format, count range, and shaped cross-section so that mills can select and test a defined specification instead of relying on the product name alone.

Can I combine CoolSilk with cotton or spandex?

Yes. Mills can plate CoolSilk with cotton to create a more natural outer surface, or combine it with spandex for stretch and recovery. Test the final construction because yarn placement and fabric structure affect moisture movement and hand feel.

Can VI-TEX provide samples and technical documents?

Yes. VI-TEX can prepare sample cones for machine trials and provide available specification sheets or test documents for the selected grade. Document availability depends on the exact yarn, so include the end use, specification, test method, and destination market in your inquiry.

Related products