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Process Data set: Wet steaming cotton dyeing and finishing ; printing and dyeing cotton ; open width washing (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 ; open width washing
Use advice for data set When utilizing this data set, it is important for users to note that it reflects the specific energy and steam consumption patterns of the Jiangsu enterprise under study, which may not be representative of all operations in this industry. Users should adjust their calculations when applying this data to different contexts, taking into consideration the ratio of coal consumption for the two boiler types (17:1) and the steam usage ratio for the various drying cylinders (2:1:1:1:1:2). Users are also advised to account for the fact that the stenter and pad dyeing processes require double drying steps, and that steam usage calculations should be adapted accordingly. Recycling and environmental practices vary from region to region, and it is imperative to verify that these practices align with the conditions of the data set location.
Technical purpose of product or process The described industrial process pertains to the wet steam method of cotton cloth dyeing and finishing, which involves the printing and dyeing of cotton fabrics utilizing the open width washing technique. Coal is utilized in steam and thermal oil boilers to generate steam and maintain higher operating temperatures for the process. The sequence of processing steps that employ steam generated by these boilers includes scouring and oxygen bleaching, calendering, napping, open width washing, stentering, and pad dyeing. In this sequence, steam is applied to dry the greige fabric, with the stenter and pad dyeing requiring double drying steps while the others use a single drying step. The steam consumption ratios for these processes are 2:1:1:1:1:2. This detailed data set specifically examines a textile printing and dyeing enterprise located in Changshu, within the Yangtze River Delta Economic Zone in Jiangsu Province.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Materials production / Other materials
General comment on data set "Open width washing" is a step in the dyeing and finishing process, involving the washing of fabric to achieve cleanliness and treatment effects in the widthwise direction. This process helps to eliminate residual dyes, auxiliaries, or other impurities, while also adjusting the fabric's texture and appearance.
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) 2024-01-10T15:15:03+08:00
Publication and ownership
UUID 99fed048-6990-46f7-b2ed-6c48ba9b055f
Date of last revision 2024-04-20T14:55:51.407168+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=99fed048-6990-46f7-b2ed-6c48ba9b055f&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 310.0 MJ310.0 MJ
Product flow Materials production / Raw materials 981.0 kg981.0 kg
Product flow Energy carriers and technologies / Crude oil based fuels 56.5 kg56.5 kg
Product flow Energy carriers and technologies / Energetic raw materials 140.0 kg140.0 kg
Product flow Energy carriers and technologies / Crude oil based fuels 1.21 kg1.21 kg
Product flow Energy carriers and technologies / Crude oil based fuels 0.363 kg0.363 kg
Product flow Materials production / Organic chemicals 1.66 kg1.66 kg
Product flow Energy carriers and technologies / Hard coal based fuels 2.21 kg2.21 kg
Product flow Materials production / Other mineralic materials 0.0283 kg0.0283 kg
Product flow Energy carriers and technologies / Heat and steam 3.15E7 MJ3.15E7 MJ
Product flow Materials production / Inorganic chemicals 10.7 kg10.7 kg
Product flow Materials production / Other materials 10.9 kg10.9 kg
Product flow Materials production / Other materials 1.57 kg1.57 kg
Elementary flow Resources / Resources from water / Renewable material resources from water 20300.0 m320300.0 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 2780.0 kg2780.0 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 0.177 kg0.177 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 2.09 kg2.09 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 0.365 kg0.365 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 0.562 kg0.562 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 9.11E-6 kg9.11E-6 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 0.00429 kg0.00429 kg
Product flow End-of-life treatment / Waste water treatment 18800.0 kg18800.0 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 21.4 kg21.4 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 2.32 kg2.32 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 4.44E-6 kg4.44E-6 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 9.32E-8 kg9.32E-8 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 8.39E-7 kg8.39E-7 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 1.65E-7 kg1.65E-7 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 3.8E-6 kg3.8E-6 kg