Dyeing can take place at multiple stages within the supply chain, from dyeing fibres and yarns through to fabrics and garments. The environmental impact of dyeing is related to the type of dye, type of material being dyed, application method used, stage applied and overall desired effect. In general, dyeing requires significant amounts of water and energy due to the use of heated dye baths and rinsing baths. Many of the chemicals used in dyeing also present a concern.

What's in a name?

• Dairies explored benefits of employing ice pigging in their production cycles
• Results showed substantial cost and environmental savings

Yeo Valley Farms and BV Dairy in the UK explored cost-effective and environmental alternatives to clean their lines after production. They carried out 'pigging' trials that force ice slurry through the system to remove sediment, which saves cleaning time and reduces overall water and chemical use in the process.  

Packaging is usually developed simply to protect products during transportation, storage and display. However, in some circumstances, more complex packaging can be useful. A company looked at markets where temperature control, such as frozen products, is critical and this led to an innovative, resource-efficient and convenient new packaging being developed.

The cold truth

Experts estimate that up to 11 % of the 'cradle-to-factory gate' carbon footprint of a 100 % polyester ladies top, for example, is due to the yarn dyeing stage. Coloured polyester fibres may be more expensive than standard uncoloured ones since they include the cost of dye pigments added before the extrusion process. However, by eliminating this wet dyeing process, money is saved on water and chemicals, and energy savings are also achieved.

Biomass boilers mean cosy cottages year-round

Get the specs right from the outset... and save!

• Assumptions about materials and processes can lead to over-specification and end up costing more
• Matching real requirements to specifications can save significant raw materials and associated costs

Bradagh Interiors knew that tailoring the type of wall framing stud used to suit the needs of a specific job could result in significant savings through reduced waste tonnages and material costs.

Light at the end of the... warehouse!

Trimming down for the... winter

• Priority for a Scottish sports club was to upgrade its ageing heating and insulation
• With the budget available, experts advised against low-hanging fruit like new lighting, at this stage 

Inverness Tennis and Squash Club is a hub for the local community providing a range of sports facilities including a gym, fitness studio and sauna.

More bam from your BIM!