Close Go back Collapse all sections
Process Data set: Wet steaming cotton dyeing and finishing ; printing and dyeing cotton ; mercerization (en) en zh

Key Data Set Information
Location SZ-JS-CN
Geographical representativeness description The study focuses on a printing and dyeing enterprise in Jiangsu Province, located in Changshu within the Yangtze River Delta Economic Zone.
Reference year 2012
Name
Wet steaming cotton dyeing and finishing ; printing and dyeing cotton ; mercerization
Use advice for data set When utilizing this LCA data, users must pay close attention to the energy allocation amongst various processing stages in the dyeing and finishing of cotton fabrics. The reported coal consumption ratio for steam and conduction oil boilers should be accounted for in the use of coal as an energy source. Additionally, it is crucial to consider that this data is based on specific operations of a survey enterprise located in Changshu, within the Yangtze River Delta Economic Zone in Jiangsu Province. Users must consider regional energy mix and technology levels, and, if needed, adjust the data to reflect local or specific production conditions. Recycling and end-of-life scenarios are not included in this data set, and users need to handle these aspects separately as per their LCA study requirements.
Technical purpose of product or process This industrial process involves the wet steaming cotton dyeing and finishing method used in the textile industry, specifically for printing and dyeing cotton fabrics with mercerization. Mercerization enhances the luster, strength, and dye affinity of cotton. Coal is used in steam and conduction oil boilers to produce steam and maintain high operating temperatures, essential for various stages of textile processing, including scouring, bleaching, mercerizing, raising, width washing, stentering, and pad-dyeing. Steam is utilized for drying the fabric after each of the processes mentioned, with two drying steps for pad-dyeing and one for all other stages. The process is designed to efficiently allocate steam usage among different stages according to the proportion of 2:1:1:1:1:2 based on the assumption that each drying cylinder consumes an equal amount of steam.
Classification
Class name : Hierarchy level
  • ILCD: Materials production / Other materials
General comment on data set "Mercerization" is a treatment in the printing and dyeing process aimed at applying a silk finishing agent to the fabric's surface, giving it a bright and silky luster. This process typically involves applying the silk finishing agent to the fabric after the printing or dyeing is complete, followed by curing through heating or other means to achieve a smooth and glossy surface.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Technological representativeness
LCI method and allocation
Type of data set Unit process, single operation
Deviation from LCI method principle / explanations None
Deviation from modelling constants / explanations None
Data sources, treatment and representativeness
Deviation from data cut-off and completeness principles / explanations None
Deviation from data selection and combination principles / explanations None
Deviation from data treatment and extrapolations principles / explanations None
Data source(s) used for this data set
Completeness
Completeness of product model No statement
Validation
Type of review
Dependent internal review
Reviewer name and institution
Data generator
Data set generator / modeller
Data entry by
Time stamp (last saved) 2024-01-10T15:15:24+08:00
Publication and ownership
UUID 902b6675-8115-49eb-902f-fca7c1e9d75c
Date of last revision 2024-05-13T15:01:35.627089+08:00
Data set version 01.00.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=902b6675-8115-49eb-902f-fca7c1e9d75c&version=01.00.000&stock=TianGong
Owner of data set
Copyright No
License type Free of charge for all users and uses

Inputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow Energy carriers and technologies / Electricity 530.0 MJ530.0 MJ
Product flow Materials production / Raw materials 981.0 kg981.0 kg
Product flow Energy carriers and technologies / Crude oil based fuels 129.0 kg129.0 kg
Product flow Energy carriers and technologies / Energetic raw materials 318.0 kg318.0 kg
Product flow Energy carriers and technologies / Crude oil based fuels 2.74 kg2.74 kg
Product flow Energy carriers and technologies / Crude oil based fuels 0.826 m30.826 m3
Product flow Materials production / Organic chemicals 3.77 kg3.77 kg
Product flow Energy carriers and technologies / Hard coal based fuels 5.03 kg5.03 kg
Product flow Materials production / Other mineralic materials 0.0645 kg0.0645 kg
Product flow Energy carriers and technologies / Heat and steam 3.15E7 MJ3.15E7 MJ
Product flow Materials production / Inorganic chemicals 0.0336 kg0.0336 kg
Product flow Materials production / Inorganic chemicals 14.4 kg14.4 kg
Product flow Materials production / Organic chemicals 11.1 kg11.1 kg
Elementary flow Resources / Resources from water / Renewable material resources from water 12500.0 m312500.0 m3
Elementary flow Resources / Resources from water / Renewable material resources from water 2300.0 m32300.0 m3

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow Materials production / Other materials 167.0 kg167.0 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 2850.0 kg2850.0 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 0.347 kg0.347 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 2.15 kg2.15 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 13.6 kg13.6 kg
Product flow Emissions / Metal and semimetal elements and ions 0.684 kg0.684 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 0.0431 kg0.0431 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 1.15 kg1.15 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 0.0043 kg0.0043 kg
Product flow End-of-life treatment / Waste water treatment 11000.0 kg11000.0 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 12.6 kg12.6 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 1.39 kg1.39 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 1.01E-5 kg1.01E-5 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 2.12E-7 kg2.12E-7 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 1.91E-6 kg1.91E-6 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 3.75E-7 kg3.75E-7 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 8.65E-6 kg8.65E-6 kg