Location: IN - India
This dataset represents the production of 1 kg of Kenaf yarn from Kenaf fibre
The inventory includes softening, carding, drawing and spinning of kenaf fibre. The processing chain starts with softener machine which is used to soften and split up raw Kenaf fibres at the initial stage. Then the extraneous matter is removed from the kenaf fibre by carding machine. Kenaf requires 3 carding operations. In the next step drawing machines are used to blend and equalize silver of the fibre in three stages. Spinning machines are used then to elongate Slivers and fibres are twisted into yarn. Then on windings machines, spool and cops are wound for beaming and weaving operations, where wrapping of warp and weft yarn are done respectively.
The inventory is mainly based on industrial data collected from a spinning mill in West Bengal. The main inputs are Kenaf fibre, castor oil, water and energy. The waste of yarn is minimised using many preventive measures, some fibre converts into caddies and dust which is being reused in the same production process. It is important to note here that the energy data is calculated based on available secondary data for energy requirement of a kenaf processing machines.
Undefined unit processes (UPRs) are the unlinked, multi-product activity datasets that form the basis for all of the system models available in the ecoinvent database. This is the way the datasets are obtained and entered into the database by the data providers. These activity datasets are useful for investigating the environmental impacts of a specific activity (gate-to-gate), without regard to its upstream or downstream impacts.