TITLE:
Study on Licker-In and Flat Speeds of Carding Machine and Its Effects on Quality of Cotton Spinning Process
AUTHORS:
Md. Mominul Motin, Ayub Nabi Khan, Md. Obaidur Rahman
KEYWORDS:
Spinning Process, Carding Machine, Yarn Count, Flat, Licker-In, Sliver Hank
JOURNAL NAME:
Journal of Textile Science and Technology,
Vol.9 No.3,
August
28,
2023
ABSTRACT: Spinning
has a significant influence on all textile processes. Combinations of all the
capital equipment display the process’ critical condition. By transforming
unprocessed fibers into carded sliver and yarn, the carding machine serves a
critical role in the textile industry. The carding machine’s licker-in and flat
speeds are crucial operational factors that have a big influence on the
finished goods’ quality. The purpose of this study is to examine the link
between licker-in and flat speeds and how they affect the yarn and carded
sliver quality. A thorough experimental examination on a carding machine was
carried out to accomplish this. The carded sliver and yarn produced after
experimenting with different licker-in and flat speed combinations were
assessed for important quality factors including evenness, strength, and flaws.
To account for changes in material qualities and machine settings, the study
also took into consideration the impact of various fiber kinds and processing
circumstances. The findings of the investigation showed a direct relationship
between the quality of the carded sliver and yarn and the licker-in and flat
speeds. Within a limited range, greater licker-in speeds were shown to increase
carding efficiency and decrease fiber tangling. On the other hand, extremely
high speeds led to more fiber breakage and neps. Higher flat speeds, on the
other hand, helped to enhance fiber alignment, which increased the evenness and
strength of the carded sliver and yarn. Additionally, it was discovered that
the ideal blend of licker-in and flat rates varied based on the fiber type and
processing circumstances. When being carded, various fibers displayed
distinctive behaviors that necessitated adjusting the operating settings in
order to provide the necessary quality results. The study also determined the
crucial speed ratios between the licker-in and flat speeds that reduced fiber
breakage and increased the caliber of the finished goods. The results of this
study offer useful information for textile producers and process engineers to
improve the quality of carded sliver and yarn while maximizing the performance
of carding machines. Operators may choose machine settings and parameter
adjustments wisely by knowing the impacts of licker-in and flat speeds, which
will increase textile industry efficiency, productivity, and product quality.