Handbook of Solvents - George Wypych - ChemTech - Ventech!

1504 Kaspar D. Hasenclever
ideal for these - quick and safe with excellent results. Wet proofing is just in a class of its
own. Bulky textiles without sweals, without perc residues, without peculiar odors but clean,
fresh, fluffy and soft, and all after a short process demonstrate particularly well LANADOL
processing’s superiority for this group of classifications.
21.4.2.3 Limitations
Where there is light, there is also shadow. To evaluate the new system, coming to terms with
the shadowy side is vital. There are darker aspects to the method in the high demands it
places on operators and the limits, often not obvious, to its care possibilities for certain textiles.
System limits
The compromise necessary to achieve low textile shrinkage, good cleaning results and
reasonable processing time implies a process-technology tightrope walk where even small
deviations from the norm can lead to a fall. For this, read damaged textiles. It is essential,
therefore, to adhere to all the specified parameters. This involves not only the equipment together
with the types and amounts of chemicals used, but also application of the correct process
for the classification to be treated. At the moment, we will not risk even a transfer of the
process to other machine sizes of the same make.
Skill limits
To sort work into classifications for the appropriate process methods, personnel with
knowledge of textiles gained after comprehensive training in textile cleaning are required.
Furthermore, experienced finishing personnel are needed, particularly if textiles not washable
according to their care labels are to be treated with the LANADOL process, even more
so if jackets are to be cleaned.
Limits set by textiles
The main problem item, the jacket, has already been mentioned several times. Problems
can be caused by:
• Seam shrinkage
• Interlining shrinkage
• Lining shrinkage
In most cases seam shrinkage can be remedied by expert finishing methods. Remedying
shrunk interlining can be simple or very difficult. The amount of finishing work required
will vary considerably, according to the adhesive and fabric construction used. Pure
viscose lining material can shrink considerably in some cases. If the prescribed residual
moisture level was kept to precisely during the drying process, this shrinkage can be remedied.
However, if there was over-drying then recovery is frequently impossible.
If all three eventualities have occurred on the same jacket, then it is a goner. On the
other hand, this really happens very rarely. The limits outlined here accurately reflect experiences
to date. With wider use, the catalogue might possibly grow more extensive - but so
also would the experience to deal with such problems.
21.4.2.4 Adapting to working practices
The LANADOL process is ideal to supplement an existing drycleaning process, so that one
can readily envisage the proportion growing a step at a time. With increasing confidence in
this processing method, soon not only those textiles which are washable according to their
care label will be cleaned in water, but also more general outerwear. It is then only a question
of time in a textile care company before most work will be cleaned with water and the