Sustainable Apparel Coalition

Description

Batch dyeing or exhaust dyeing process. Can be applied to fiber, yarn, fabric, or garments. Acid dyes. Batch dyeing occurs a temperatures from 100 up to 1000 degrees C (carbon fiber). Includes water, energy, dyes and other auxiliary inputs. Dyestuffs and auxiliaries are estimated from available data.

Impacts

	Impact area	MSI Score
	Global Warming	1.8
	Eutrophication	1.2
	Water Scarcity	0.4
	Abiotic Resource Depletion, Fossil Fuels	1.6
	Chemistry	Scored per material rather than production stage. Click on "Return to Material", and learn about Chemistry scoring under "Chemistry Certifications".

Modeling Notes

Additional data points from Muruggesh, Babu K. (2013). Life Cycle Assessment for the Dyeing and Finishing Process of Organic Cotton Knitted Fabrics. Journal of Textile and Apparel, Technology and Management. Volume 8, Issue 2.

Meta information

Primary Source: Cotton Incorporated. (2017). LCA Update of Cotton Fiber and Fabric Life Cycle Inventory. Retrieved from https://cottontoday.cottoninc.com/lca-2016/
Last Publication or Review date: 2015
Geography: Global/generic
Data Generator: Cashion East, Pivot Analytics; east@pointpivot.com

Applicable Materials

Material	Impact benchmarkimpactblend components
Alpaca Fabric	283 Textiles
Nylon fabric	60 Textiles
Polyuethane (PU) fabric	42 Textiles
Silk fabric	681 Textiles
Wool fabric	82 Textiles

Data quality

Data Quality	Value	Description
Precision	Good	10% to 20%	2
Time Representativeness	Excellent	Data are not older than 4 years with respect to the release date or latest review date	1
Geographical Representativeness	Fair	The processes included in the dataset are sufficiently representative for the geography stated in the title and metadata	3
Technological Representativeness	Fair	The technologies modeled are representative of the average technology used for similar processes	3
Average			2.25

Batch dyeing (incl. piece, jet, jig, kier, yarn) - Acid dyes