Ashens barks, Raspberriesmash and Canadian golden rod: natural dyes for textile industry

1
Ashens barks, Raspberriesmash and Canadian
golden rodnatural dyes for textile industry

2
State of the art

• industrial dyehousesynthetic dyeswith high
  level of quality and very low costs
• natural dyesno application on an industrial
  scale,offered by natural textile shops,research
  activity on singular species

3
Aim

• Sustainable use of natural dyes
• on a big scale
• in modern textile dyehouses

4
Criteria for Sustainable use of natural dyes in
modern textile dyehouses

• Low resource consumption (life cycle approach)
• Low emissions (life cycle approach)
• practicability and functionality (as a
  precondition for implementation in industrial
  procedure)

5
Main demands defined by technical dyehouses

• demands on dyeing process
• demands on colouring matter
• demands on plant material

6
Demands on dyeing process

• simple and rapid procedure, one-bath dyeing
• applicability in dyeing machines in use today
• optimised consumption of chemicals and energy

7
Solution Dyeing process with plant dyes

8
Demands on colouring matter

• tri-chromy containing yellow /red /blue and
  black
• acceptable fastness properties- light fastness-
  wet fastness- wash fastness

9
Solution colour chart
10
Demands on plant material

• low costs
• permanent accessibility
• suppliers of plant material, who offer material
  with constant dyeing quality

11
Solution low costs by combination

• Agricultural materialgoldenrod (Solidago)madder
  (Rubia)
• by-products from wood industry and food
  processing ashens bark walnut shell grape
  marc onion skin

12
Work in progress permanent accessibility (from
raw material to dyeing matter)

• water extractionliquor ratio 120
  (solidwater)95C for 60 min
• separation of solid residues(sedimentation and
  filtration)
• extractdyeing bath

13
Work in progress supply of trade product

• applicable solid
• stabilisation of raw material
• shred plant matter
• standardisation of outcoming dyeing matter

liquid master batch extraction of raw
material condense extract stabilise
extract standardisation of colour strength and
shade
14
Main demands defined by technical dyehouses

• demands on dyeing process(?simple,?to
  date,?economical)
• demands on colouring matter(?tri-chromy,?fastness
  properties)
• demands on plant material(?costs,
  !accessibility, !supply)

15
Thanks!
Susanne Geissler Thomas Bechtold Anna Hartl Otto
Schütz
Info
www.fabrikderzukunft.at www.ecology.at
This project was supported by the
Bundes-ministerium für Verkehr, Innovation und
Technology.
16
Thanks!
Susanne Geissler Thomas Bechtold Anna Hartl Otto
Schütz
Info
www.fabrikderzukunft.at www.ecology.at
This project was supported by the
Bundes-ministerium für Verkehr, Innovation und
Technology.