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مشاهدة النسخة كاملة : أريد معلومات عن spiral yarn



mega87_2000
04-06-2010, 06:04 PM
أريد معلومات عن spiral yarn

Eng/Magdy_abo elmagd
04-08-2010, 11:55 AM
ازيك يا ميجا
اخوك مجدى اتمنى ده ينفع

mega87_2000
04-08-2010, 12:34 PM
الف شكر و لكن مش لاقي الي انا عاوزه

أحمد شعيرة
04-09-2010, 10:24 PM
اللأخ الفاضل مهندس مجدي
هذا الكتاب للدكتور يحيى مغازي من أروع الكتب الحديثة في الغزل

لو تستطيع وضعه على المنتدى............


{m< و جزاك الله خيرا {m<

Eng/Magdy_abo elmagd
04-10-2010, 09:35 AM
الاخ العزيز صاحب الاسم اللامع فى الغزل احمد شعيرة انا مع مهندس محى وهو بيشكر فيك
الكتاب بالفعل موجود فى المنتدى
تحياتى

أحمد شعيرة
04-11-2010, 02:10 PM
جزاك الله خيرا
و سلامي للأخ الفاضل ......... مهندس محي

hkattan
04-12-2010, 01:05 AM
Spiral or corkscrew yarn
A spiral or corkscrew yarn is a plied yarn that displays a characteristic
smooth spiralling of one component around the other. Figure 6.3 shows the
basic structure, which is straightforward, and except in the differing lengths
of the two yarns involved, very similar to the structure of a marl yarn.
Indeed, just like the marl yarn shown in Fig. 6.1, it can be produced relatively
simply on a doubling frame or under the ring spinning system. It is
more textural in appearance than a marl, and the finer counts may also
appear in some of the laces used in lingerie.
It may be formed by one of several methods:
1 If equal lengths of S and Z twist yarns are combined with twist (either
S or Z), the component to which twist is added will contract in length
while the other will extend and spiral around the outside of the yarn
thus formed. This produces an unbalanced-twist spiral yarn.

2 One or other of the two yarn components may be delivered at a greater
rate. The shorter length forms the base, while the greater length of its
companion (or in the case of more complex yarns, companions) follows
a spiral around it.
3 If equal lengths of two yarns, one coarser than the other, are folded
together with a twist that opposes the thick yarn twist, the thicker yarn
will appear to spiral around the thinner yarn.
Figure 6.4 offers examples of two very different spiral yarns. The top yarn
seems to be relatively heavy and shows that two different types of thread
were used to make it – the first is tightly twisted, fine and lustrous while the
second is less compact, and by contrast appears almost fluffy. The other, a
fine viscose spiral yarn, is one in which the two component yarns are of
much more similar count and structure. These yarns would be used to give
very different effects in a fabric. In particular, the heavier yarn would offer
the opportunity to impart very subtle flecks of shine to a dull surface. The
finer yarn, on the other hand, would allow the designer to take advantage
of the uneven reflectance to reduce the ‘flat’ effect of a very shiny fabric,
imparting visual and tactile textures at the same time.

hkattan
04-12-2010, 01:14 AM
http://www6.0zz0.com/2010/04/12/00/108581562.gif

hkattan
04-12-2010, 01:17 AM
http://www6.0zz0.com/2010/04/12/00/590710405.gif

hkattan
04-12-2010, 01:26 AM
إن شاء الله أكون قد أفدتك


المرجع كتاب Fancy Yarns ; Manufacture and Applications

http://www.arabytex.com/forum/showthread.php?t=1650

و شكر خاص للأخ Medéteranien (http://www.arabytex.com/forum/member.php?u=501) و الأخ أحمد شعيرة و جميع الأخوة الأعضاء