The book of wonders : $b gives plain and simple answers to the thousands of everyday questions that are asked and which all should be able to, but cannot answer...
Science
The book of wonders : $b gives plain and simple answers to the thousands of everyday questions that are asked and which all should be able to, but cannot answer...
Curiosities and wonders; Encyclopedias and dictionaries; Questions and answers; Science -- Miscellanea; Technology -- Miscellanea
The finishing processes of woolens, like the finishing processes of
worsteds, vary with different fabrics, some fabrics being scoured and
cleansed in the washers before fulling, others going to the fulling
mill without cleansing. After fulling, the cloth is again washed
and rinsed, and if necessary to remove any vegetable fibres it is
carbonized.
Napping or gigging raises the fibres to the nap desired. Gigging is
done by means of a wire napping machine or teasel gig, which raises
the ends of the fibres on the face of the cloth. The teasel is a
vegetable product about the shape of a pine cone, and it is interesting
to note that no mechanical contrivance has ever been invented to equal
it for the purpose.
[Illustration: SPINNING THE WOOL
Copyright American Woolen Company
ENGLISH CAP SPINNING]
The napping which has been raised by the teasel is sheared or cut to a
proper length by machine. The cloth is pressed, and, if it is desired
to finish it with lustre, it is wound upon copper cylinders and steam
is forced through it at a high pressure.
[Illustration:
Copyright American Woolen Company
RING TWISTING]
[Illustration:
Copyright American Woolen Company
BEAMING--YARN INSPECTING]
[Illustration:
Copyright American Woolen Company
WOOLEN MULE SPINNING]
[Illustration:
Copyright American Woolen Company
FINISHER WOOLEN CARDING]
Next the cloth is dyed, if it is to be piece-dyed--that is, dyed in
the piece. If the cloth is a mixture, the wool was dyed immediately
after the scouring. In worsteds the dyeing is done either just after it
has been subjected to the first combing processes, or the yarn is dyed
in the skein or hank.
[Illustration:
Copyright American Woolen Co.
PIECE DYEING
Copyright American Woolen Co.
FULLING CLOTH
Copyright American Woolen Company
FINISH PERCHING]
[Illustration:
Copyright American Woolen Company
FINISHED CLOTH, READY FOR THE TAILOR]
In the dry finishing the cloth is finished with various kinds of
finishes desired, and it is steamed, brushed, sheared and pressed.
Another examination for any imperfections or defects follows; the cloth
is measured, packed and tagged and is ready for the market.
The difference between worsteds and woolens is principally that in the
threads or yarns from which worsteds are made the fibres of the wool
lie parallel, one to another, being made from combed wool, from which
the short fibres have been removed; and woolens are made from yarns in
which the fibres cross and are matted and intermixed. When finished
the effect of worsteds and woolens is materially different. Upon
examination it will be found that the worsted thread resembles a wire
in evenness, while the woolen thread is uneven and irregular.
Public-domain text, read in full here on John Shaqi.
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