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Explanation of processing
Question & Answer
- Circumference of hank yarn and its weight
- Roller and spray pipe
- Non-tension is ideal
- Reeling
- Dyeing with reduced alkali
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Question & Answer


Roller and spray pipe

Q: Can we decide the number of rollers in the machine freely?

A:

You can select the number of rollers in the optimum range for mercerization, but please consult Nishinakajima Precision Machinery for optimum design.

Alkali liquor should be fed uniformly into the hank bundle loaded on the rollers and rotating around the rollers, both by being dipped in the liquor at the bottom of the vessel and by being sprayed from the spray pipe.

The operation is controlled by computer program, and increasing the number of rollers or spray pipes without due consideration may cause trouble

Q: Can we increase the circumference of the hank?

A:

No. A variation of the effect of mercerization between the inner and outer side of the hank bundle may occur when the circumference and the weight of hank are increased.

It may cause turbulence in the hank bundle during mercerizing and rinsing, leading to uneven mercerization.
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