Weaving - acimit

Collections Edited By Fondazione Acimit
″STRATEGIES OF CONOMY″
THE TEXTILE MACHINERY INDUSTRY IN ITALY:
STRATEGIC, COMMERCIAL, FINANCIAL BEHAVIOURS
(April 1997)
THE TEXTILE MACHINERY INDUSTRY IN THE 2000’s:
HYPOTHESIS, SIMULATION GAMES, TREND OF THE RELATED SCENARIOS
(November 1997)
THE CRISIS OF ASIAN TEXTILE SECTOR AT THE BEGINNING OF 2000 YEARS
(November 1998)
TEXTILE MACHINES:
THE COMPETITION OF THE EMERGING COUNTRIES
(December 1999)
″PUBLICATIONS FOR THE SCHOOLS″
THE ITALIAN TEXTILE MACHINERY INDUSTRY, TODAY:
CHARACTERISTICS, RAW MATERIALS, TECHNOLOGIES
(December 1999) available also on CD Rom
REFERENCE BOOKS OF TEXTILE TECHNOLOGY:
WEAVING
(October 2000) available also on CD Rom
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By
Giovanni Castelli
Salvatore Maietta
Giuseppe Sigrisi
Ivo Matteo Slaviero
fondazione
ACIMIT
Italian Association of Textile Machinery Producers Moral Body
Via Tevere 1, 20123 Milano (Italy)
Phone: +39 024693611, fax +39 0248008342
e-mail: [email protected] − web site: www.acimit.it
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Published in October 2000
All reproduction, even partial and using any means, is prohibited by
law and in accordance with relevant international agreements.
English translation: Ermanno Passaquindici
Introduction
I am pleased to introduce the first of a series of four ″Reference Books″ about textile machinery technologies, which
the ACIMIT Foundation decided to offer to the Italian textile institutes.
The subjects of this Reference Book are machines, accessories, ancillary equipment and technologies related to
″Weaving″, a sector in which Italy boasts the presence of top−ranking companies offering worldwide a state-of-the-art
know-how.
This Reference Book concerning ″Weaving″ will be followed in the year 2001 by three other References Books
reserved to ″Knitting″, ″Spinning″ and ″Finishing.
The exigence of realizing these Reference Books originated from a series of meetings which the ACIMIT Foundation
− within various initiatives aimed at developing their relations with the educational bodies - decided to start up in cooperation with the headmasters and the teaching staff of the textile institutes.
ACIMIT Foundation had been informed in fact that the editions which are presently used as textbooks in these
institutes do not keep up any more with the continuous and rapid technological development characterizing this sector
in last years.
Consequently, to comply as much as possible with the learning needs of the students, the ACIMIT Foundation
thought it advisable, in agreement with the headmasters of the various institutes, to entrust the realization of the
Reference Books to a group of teachers of these institutes, who accepted with great enthusiasm this not easy task.
The Italian textile machinery producers wish therefore to thank sincerely the headmasters and teachers of these
institutes, from which they draw precious resources for the development of their own enterprises.
As nothing is born perfect, we shall be sincerely grateful to everybody concerned (students, teachers, company
technicians, etc.) for any suggestion and correction, which will enable us to improve our work and make it more and
more profitable.
Alberto M. Sacchi, President, ACIMIT Foundation
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Acknowledgments
ACIMIT Foundation feel bound to thank the headmasters and the teachers of
following Institutes:
• ITIS Buzzi, Prato
• ITIS Casale, Torino
• ITIS Leonardo da Vinci, Carpi (MO)
• ITIS Marzotto, Valdagno (VI)
• ITIS Sella, Biella
• ITIS Carcano, Como
• ITIS Facchinetti, Castellanza (VA)
• ITIS Leonardo da Vinci, Napoli
• ITIS Paleocapa, Bergamo
• ITIS Varese, Varese
Without the helpfulness and the efficient co-operation of the headmasters and
teachers of above Institutes, the editing of these Reference Books would
never have been possible.
In particular, the draft of the ″Weaving″ Reference Book was performed by
following teachers:
prof. Giovanni Castelli
prof. Salvatore Maietta
prof. Giusepe Sigrisi
prof. Ivo Matteo Slaviero
ITIS Varese
ITIS Varese
ITIS Carcano
ITIS Marzotto
who devoted to it time and enthusiasm and deserve the warmest thanks of the
ACIMIT Foundation.
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Index
Introduction........................................................................................................................................... page
Warping ................................................................................................................................................ ″
Creels .................................................................................................................................................... ″
Sectional warping ................................................................................................................................. ″
Beam warping....................................................................................................................................... ″
Direct beaming...................................................................................................................................... ″
Sample warping .................................................................................................................................... ″
Sizing .................................................................................................................................................... ″
Preparation of weaving machines ......................................................................................................... ″
Weaving machines................................................................................................................................ ″
Rapier weaving machines .................................................................................................................... ″
Projectile weaving machines ................................................................................................................ ″
Air jet weaving machines ..................................................................................................................... ″
Water jet weaving machines ................................................................................................................. ″
Special weaving machines .................................................................................................................... ″
Bearing structure of a weaving machine .............................................................................................. ″
Warp let-off and fabric take-up ............................................................................................................ ″
Shedding machines ............................................................................................................................... ″
Drive and control of weaving machines ............................................................................................... ″
Other equipment ................................................................................................................................... ″
Weft feeders.......................................................................................................................................... ″
Weft and warp control .......................................................................................................................... ″
Selvedges .............................................................................................................................................. ″
Production control and analysis in the weaving rooms ........................................................................ ″
Multimediality and Internet in weaving................................................................................................ ″
Air conditioning plants ......................................................................................................................... ″
The hazards in the textile industry ....................................................................................................... ″
Fabric defects and machine setting problems ....................................................................................... ″
Cost accounting .................................................................................................................................... ″
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18
20
21
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24
28
29
36
42
45
47
54
55
57
64
66
70
71
75
77
82
83
84
88
91
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