Method of chemical treatment for fibers
AssigneeTintoria Piana US, Inc.
InventorsSang-hoon Lim, Andrea Piana
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Abstract
Repeatable and reliable chemical treatment for loose fibers is achieved by spraying or immersing loose fibers in a chemical treatment bath, and continuously moving the soaked fibers through a continuous centrifuge. The continuous centrifuge controls the wet pickup of the chemical formulation on the fibers and assures a substantially even chemical distribution on the centrifuged fibers. The centrifuged fibers may be dried to fix the chemicals in the chemical formulation to the fibers and/or to remove water from the chemical formulation. Recycling of the chemical formulation from the continuous centrifuge allows for the process to be performed more economically and in a more environmentally friendly fashion.
Claims8
A method for continuous chemical treatment of loose fibers, comprising the steps of:
- applying a chemical formulation to loose fibers as the loose fibers continuously move through a chemical treatment bath, wherein said step of applying is performed by one or more of spraying the chemical formulation on the loose fibers and immersing the loose fibers in the chemical formulation;
- continuously conveying the loose fibers through the chemical treatment bath, wherein the loose fibers are held stationary during passage through the chemical treatment bath;
- and then
- centrifuging, with a continuous centrifuge, the loose fibers with applied chemical formulation received from the chemical treatment bath to produce centrifuged loose fibers with the chemical formulation evenly distributed on the loose fibers.
Dependencies are inferred from the claim text.