Sample package dyeing machine

Abstract

A dyeing machine (2) for dyeing a sample yarn package (9) comprises a kier (2), a spindle (7) mounted in the kier for supporting a sample yarn package, and a dye liquor circulation system (25) operable to circulate dye liquor through the sample yarn package with inside-to-out and outside-to-in flow directions, the kier and the spindle configured to accommodate a single sample yarn package with a weight less than 1.2 kg, and the machine having an operating volume such that a single sample yarn package weighing less than 1.2 kg can be dyed using a liquor ratio of substantially 1:6.

Description

technical field [0001] The invention relates to a cheese dyeing machine for dyeing sample cheese. Background technique [0002] Traditionally, textile yarns are dyed by forming packages on mandrels mounted in a package dyeing machine. Many packages are loaded into a single machine. A standard cheese package weighs about 1.2 kg and contains a large number of yarns. The dye liquor circulates through the package in both an inside-out flow direction (from the inside of the mandrel out through the yarn to the outside of the package) and an outside-in flow direction to ensure even dyeing . The ratio of the volume of dyeing liquor to the amount of yarn (bath ratio) determines the degree of dyeing, and a specific liquor ratio is required to achieve a desired color. [0003] In the yarn dyeing industry, customers usually request samples for confirmation. Typically, this sample is provided by dyeing a standard 1.2 kg yarn package. This amount of yarn will typically be much more ...

AI Technical Summary

Problems solved by technology

Therefore, dyeing recipes used in production machines cannot be used directly on sample dyeing machines of this type, as this would also produce differences between sample and production yarns

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