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Solution Dyed Yarn Vs Package Dyed Yarn

We get questions every week from manufacturers who want to use one or more ends of a colored yarn or thread for product identification (marker threads) and for production marketing and differentiation.   An understanding of the types of dyed yarns available, and the advantages and disadvantages of each is crucial to product performance and design.
There are two main processes commonly used to create colored yarns:  package dyed and solution dyed (also called dope dyed).  Let’s take a look at each:

cone dyeing machine

Package Dyed Yarns

Package dying is a mature technology that is one of the most commonly used methods of yarn dying.  This eight step process involves dying natural yarns that have been wound on perforated spools that are dyed in a pressurized tank.

sample cone dyeing machine