What Is Polyester Pongee Fabric?
Polyester Pongee Fabric is a lightweight woven polyester fabric, usually supplied in a plain weave with a smooth, relatively soft hand. Commercial constructions commonly range from nominal 190T to 320T for linings, lightweight shells, umbrellas and coated products. The T designation is a trade density description, not a complete specification; buyers should also state yarn denier, measured warp and weft density, GSM, width and finish.
Common Specifications Buyers Compare
SpecificationCommon OptionsBuyer Note
Nominal T construction.Typical commercial grades include 190T, 210T, 230T, 240T, 260T, 290T, 300T and 320T.Use the nominal grade for initial comparison only, then control the fabric through measurable construction details.
Warp and weft density.Suppliers may report ends per inch by picks per inch, while the combined value may only approximate the advertised T grade.Require separate values because two fabrics sold under the same T grade may have different weave balance and surface cover.
Yarn denier.Indicative constructions often use 75D yarns around 190T to 240T and 50D yarns around 300T to 320T, subject to supplier design.Yarn size affects weight, opacity, strength, drape and price, so it must accompany the T designation.
Yarn and luster type.Options may include FDY, DTY, textured filament, semi-dull, full-dull and bright polyester yarns.Confirm filament structure because yarn type changes softness, bulk, sheen, dye appearance and snag behavior.
Finished fabric weight.Indicative finished weights are often about 55 to 85 GSM for standard unlaminated 190T to 320T qualities, depending on construction and finish.Higher T does not necessarily mean higher GSM because finer yarns can produce a tighter but similarly weighted fabric.
Weave structure.Plain weave is standard, while ripstop, dobby and altered plain constructions are supplier-dependent alternatives.Specify plain weave unless the reference requires another structure because suppliers sometimes group related lightweight polyester fabrics under pongee.
Finished and cuttable width.Typical finished widths include approximately 145, 150 and 155 centimeters, with wider goods available from selected mills.Control usable width because selvedges, coating margins and edge defects directly affect marker efficiency and consumption.
Lining performance.Common lining finishes include plain dyed, antistatic, soft finish, low-gloss cire and printed effects.For linings, prioritize smoothness, drape, antistatic performance and resistance to seam slippage over the nominal T number alone.
Main Applications
Garment linings for jackets, coats, suits and padded outerwear.Lightweight shell fabrics for windbreakers, rainwear and promotional jackets.Umbrella canopies and lightweight protective covers.Sleeping bag shells, quilt linings and insulated product covers.Bag linings, drawstring bags and low-load accessory panels.Coated or laminated components requiring low weight and compact packing.
How Buyers Should Source It
- Compare suppliers using a construction table that separates nominal T grade, measured ends and picks, yarn denier, GSM and finished width.
- Request both uncoated and finished weights when coating add-on affects freight, hand, sewing behavior or garment weight.
- Approve a full-width sample for coated qualities because edge-to-center variation may not appear in a small cutting.
- Use the same test method, conditioning and fabric side across quotations so hydrostatic, spray and air-permeability results remain comparable.
- Ask whether the quoted construction comes from stock greige because custom density, yarn or width may change minimums, price and lead time.
- Check shade and finish under the final end-use lighting because cire and coatings can alter color depth, gloss and visual uniformity.
- Run sewing trials with production needles, thread and seam type when the fabric must be downproof, waterproof or resistant to seam slippage.
- Retain an approved bulk standard showing hand, color, surface appearance and coating quality, supported by measurable tolerances for production inspection.
RFQ Checklist
- State the fiber composition and whether virgin or recycled polyester is required, including the accepted verification documents for any recycled claim.
- Specify the nominal grade, such as 210T or 300T, together with the required warp ends and weft picks per inch.
- Provide warp and weft yarn denier, filament type and any required FDY, DTY, dullness or textured-yarn characteristics.
- Set the finished fabric weight in GSM with an agreed production tolerance because dyeing, cire and coating can change weight.
- State the usable cuttable width, not only the loom or overall width, because coated edges and selvedges may reduce yield.
- Define the face and back, required sheen, softness, drape, noise level and whether a sealed reference sample controls the hand.
- Identify every finish, including DWR, cire, antistatic treatment, coating chemistry, coating side, coating color and lamination structure.
- For water resistance, specify the hydrostatic-pressure target, test method, conditioning and whether the requirement applies before or after aging or laundering.
- Set air-permeability or downproof requirements when the fabric will contain insulation, since nominal density does not predict leakage by itself.
- Set minimum tear and breaking-strength requirements based on the product construction, expected loads and intended care conditions.
Common Mistakes to Avoid
- Buying by the nominal T number alone ignores yarn denier, actual ends and picks, weight, weave balance and finishing.
- Assuming 300T is automatically heavier or stronger than 210T overlooks the finer yarns commonly used in higher-density constructions.
- Using DWR spray performance as proof of waterproofness confuses surface repellency with resistance to water penetration under pressure.
- Accepting the word "coated" without chemistry, coating side, color, add-on weight or performance targets makes quotations difficult to compare.
- Treating cire as a waterproof finish ignores its primary effects on surface appearance, air permeability and closure of yarn interstices.
- Approving only a handloom or small swatch can hide bulk differences in shade, width, bow, coating uniformity and roll tension.
- Relying on T count to specify downproof performance ignores air permeability, seam construction, fill type and needle damage.