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el resultado. Los costos han sido reducidos al mínimo. El servicio
a domicilio de los grandes vendedores se ha limitado hasta ahora sólo
a sus mejores clientes. Los gerentes de tintorerías interesados
en un costo inicial bajo, pronto contratan a consultores de alto precio
para que les saque de un apuro, e incluso algunas veces terminan en bancarrota.
Tintes
El suministro de tintes se ha tornado cada vez más problemático.
Anteriormente, proveedores pequeños buscaban por todo el mundo
precio bajos sobre materias primas, importadas y re-empacadas. Actualmente,
los proveedores principales de tintes han formado empresas conjuntas con
productores importantes en China, India e Indonesia. Los tintes de un
vendedor pueden fabricarse en cualquiera de varios lugares del mundo.
La calidad que entregan los proveedores principales vale el dinero que
se paga.
Mantenimiento
Muchos consideran que el tiempo de mantenimiento es pérdida de
oportunidad para producir hilo teñido para vender. Este criterio
pronto se convierte en una cara decisión. El mantenimiento preventivo
en su calendario es claramente más barato que tiempo ocioso no
previsto y una tintura arruinada.
Optimización del Tinte con ayuda de Computadoras
Desde hacer algunos años, DyStar ha trabajado con tintoreros de
paquete para desarrollar una serie de parámetros que permitan optimizar
el tinte. Los procedimientos típicos de tinte por válvula
están lejos de ser óptimos. Deben generalizarse para cubrir
una amplia gama de condiciones.
Los parámetros de teñido de las diversas fibras y tintes
generalmente no se toman en cuenta. Al implementar el Sistema DyStar Compudye,
un tintorero de paquetes por comisión en Alemania redujo el tiempo
de tintura por lote en un 29%, el uso retardado en un 51% y virtualmente
eliminó las operaciones de sombreado para teñido repetido
del mismo tono.
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items,
imported and repackaged. Today, all major dye suppliers have formed
joint ventures with leading producers in China, India and Indonesia.
Dyes from one vendor may be made in any of several locations worldwide.
The quality delivered from the major suppliers is worth the money paid.
Maintenance
Many people view maintenance time as a lost opportunity to produce dyed sales
yarn. This view soon proves to be an expensive decision. Preventive maintenance
on your schedule is clearly less expensive than unscheduled downtime and a
spoiled dyeing.
Computer-aided Dyeing Optimization
For a number of years, DyStar has worked with package dyers to develop a series
of parameters that allow optimization of dyeing. Typical exhaust dyeing procedures
supplied by dye vendors are far from optimum. They must be generalized to meet
a wide range of conditions in the field. The dyeing parameters of the individual
fibers and dyes are generally not taken into account. By implementing the DyStar
Compudye System, one commission package dyer in Germany reduced acrylic dyeing
batch time by 29%, retarder usage by 51% and virtually eliminated shading operations
for repeat dyeing of the same shade. This optimization program has been in
operation for over ten years. Thousands of batches of acrylic, wool, polyester/wool
and polyester yarn packages have been successfully dyed.
Color Kitchens
The technology to automate color kitchens has been available for a long time.
Lawer has been in this business for over thirty years. The first widespread
systems were installed in print plants more than two decades ago, when costs
had been reduced and were justified in the US. Almost everyone today depends
on bulk delivery of auxiliary chemicals. There are two systems used. One uses
bulk storage tanks and pumps to the dispensing head. The other uses a bulk
container that is typically stacked on top of the dispensing tank. When the
primary tank is emptied, chemicals in the bulk container are gravity-discharged
into the lower tank and replaced with a fresh bulk container. This feature
allows a virtual chemical pipeline from the supplier.
Powder dyes typically arrive by drum. The contents are vacuum-transferred into
storage containers or “silos”. Dispensing technology for this system
has also been available for more than a decade, so
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