Polyester Dress

Material Composition Assumptions

A typical polyester dress contains polyethylene terephthalate as the primary fiber component, accounting for approximately 450-500 grams of the total garment weight. The dress may incorporate small amounts of elastane or spandex for stretch properties, representing roughly 5-10% of the total composition. Additional materials include synthetic thread for stitching, metal or plastic components for zippers and fasteners, and fabric treatments for coloration and finishing processes. The total estimated weight for a standard polyester dress ranges from 500-600 grams, with pure polyester fabric comprising 90-95% of the material mass.

Manufacturing Geography

China dominates global polyester fabric production, manufacturing approximately 60% of the world’s polyester textiles through large-scale integrated facilities. The country’s textile manufacturing infrastructure benefits from vertical integration, combining petrochemical refining, polymer production, fiber spinning, and garment assembly within regional industrial clusters. Chinese polyester dress manufacturing primarily occurs in provinces such as Jiangsu, Zhejiang, and Guangdong, where the electrical grid relies heavily on coal-fired power generation with an average carbon intensity of 555 gCO2e per kilowatt-hour. This energy-intensive manufacturing process significantly contributes to the overall carbon footprint through electricity consumption during fiber production, dyeing operations, and finishing treatments.

Regional Variation

Manufacturing Region	Grid Intensity	Estimated CCI Score	Adjustment vs Default
China	555 gCO2e/kWh	52	Baseline
India	708 gCO2e/kWh	58	+12%
Indonesia	709 gCO2e/kWh	58	+12%
Taiwan	502 gCO2e/kWh	49	-6%
Turkey	448 gCO2e/kWh	46	-12%

Provenance Override Guidance

1. Facility-specific electricity consumption data during fiber production, dyeing, and finishing processes measured in kilowatt-hours per kilogram of finished fabric.

2. Transportation records documenting shipping distances and methods from raw material suppliers through final garment assembly and distribution centers.

3. Energy source documentation showing renewable electricity usage percentages or power purchase agreements for manufacturing facilities.

4. Detailed bill of materials specifying exact fiber compositions, dye types, chemical treatments, and auxiliary materials with corresponding supplier carbon intensity data.

5. Waste and recycling metrics including production waste rates, water treatment processes, and end-of-life material recovery programs implemented at manufacturing facilities.

Methodology Notes

• The CCI score represents cradle-to-grave lifecycle emissions including raw material extraction, manufacturing, transportation, consumer use phase, and end-of-life disposal for a typical polyester dress.

• Scope 1 emissions account for direct fuel combustion during manufacturing processes, while Scope 2 covers electricity consumption for fiber production and garment assembly operations.

• Scope 3 dominates the carbon footprint due to upstream petrochemical production and downstream consumer washing behaviors over the garment’s useful life.

• The functional unit assumes a standard 500-gram polyester dress worn regularly over a three-year lifespan with typical washing frequency patterns.

• Methodology excludes packaging materials, retail store operations, and consumer transportation to purchase locations due to high variability across distribution channels.

• Data gaps exist around regional variations in dyeing processes, water treatment systems, and emerging recycling technologies that may reduce future carbon intensities.