Sanforizing with BRÜCKNER POWER-SHRINK – successful modification
for a minimum residual shrinkage
BRÜCKNER supplied a POWER-SHRINK line for knitwear finishing to
the German textile company Dolinschek in Burladingen, in the
South of Germany. In this article authored by Thomas Wiederer,
Sales Manager Brückner Textile Technologies, the benefits of
Sanforizing with BRÜCKNER POWER-SHRINK machine with a successful
modification for a minimum residual shrinkage are highlighted
for the interest of our readers.
According to the author, in the beginning, compressive
shrinking ranges or sanforizing ranges were known rather for the
finishing of woven fabrics and particularly in the field of
denim finishing. Later, sanforizing lines were used in
combination with felt calenders or felt belt compactors for the
finishing of knitted fabric, too. The new BRÜCKNER POWER-SHRINK
sanforizing line offers many possibilities to sanforize even
highly sensitive knitwear to achieve a smoother touch, very low
residual shrinkage values and to meet in the end the highest
demands on quality.
For the customer Dolinschek, the challenge was among other
things to connect the line regarding drives and safety
technology to an already existing felt calender. For this
purpose all motors of the fabric drives have been replaced and
the safety technology has been adapted to the latest
requirements. Behind the rubber belt unit the fabric is led via
guide and scroll rollers into the felt calender. Subsequently
the fabric is transported with low tension via a relaxation belt
to the winding unit. In case of a working width of 2,00 m the
line is operated depending on the type of fabric with a speed of
up to 30 m/min. The fabric weights are between 50 and 300 g/m².
With this line Dolinschek finishes mainly sensitive knitted
fabrics made of cotton, viscose, polyamide and polyester for
underwear and outerwear. For the improvement of brightness and
touch the fabric is sanforized with a BRÜCKNER POWER-SHRINK
after that it passes a calender. The residual shrinkage values
before sanforizing are between 8% and 12% and after sanforizing
they are - even for knitted fabric - between 5% and 0%. With
mere cotton articles it is really possible to reach residual
shrinkage values of 0%, articles with 3 - 4% elastane can reach
residual shrinkage values between 0 and 3%. In case of viscose
articles the residual shrinkage is normally between 2 and 4%.
The fact that BRÜCKNER develops, designs and manufactures all
lines exclusively in Germany was also for the company owner,
Theo Dolinschek, a very important criterion for his decision to
buy BRÜCKNER. The modification had to take place in very short
time to keep the interruption of the production process as short
as possible. Dolinschek was founded in 1980 as textile cutting
and wholesale company. At that time they supplied mainly to
customers in the field of night, casual and children's wear.
After a reorganization of the company in 1997 they took over a
dyehouse which was extended continuously in the following years.
This allowed Dolinschek to extend also their range of articles
considerably in the following years. In 2001 a move into the
premises of a former textile factory in Burladingen came up and
this is where the company is domiciled today with finishing,
dyeing, warehouse, laboratory and administration. In these
premises Dolinschek produces with three BRÜCKNER stenters, one
sanforizing range, one relaxation dryer, one continuous washing
machine and several dyeing machines made by Thies and with lines
made by the company subsidiary TMG (Textile Machines Germany).
Today Dolinschek has about 100 employees and supplies to
customers all over Europe and some even all around the globe.