EP0152137B1 - Toile, procédé pour sa préparation et dispositif pour la mise en oeuvre d'un tel procédé - Google Patents

Toile, procédé pour sa préparation et dispositif pour la mise en oeuvre d'un tel procédé Download PDF

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Publication number
EP0152137B1
EP0152137B1 EP85200110A EP85200110A EP0152137B1 EP 0152137 B1 EP0152137 B1 EP 0152137B1 EP 85200110 A EP85200110 A EP 85200110A EP 85200110 A EP85200110 A EP 85200110A EP 0152137 B1 EP0152137 B1 EP 0152137B1
Authority
EP
European Patent Office
Prior art keywords
threads
weft
area
contact surface
paper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85200110A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0152137A1 (fr
Inventor
Gerschon Stoppelmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
V Asten Fabrique De Feutres Pour Papeteries SC
Original Assignee
V Asten Fabrique De Feutres Pour Papeteries SC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by V Asten Fabrique De Feutres Pour Papeteries SC filed Critical V Asten Fabrique De Feutres Pour Papeteries SC
Priority to AT85200110T priority Critical patent/ATE29157T1/de
Publication of EP0152137A1 publication Critical patent/EP0152137A1/fr
Application granted granted Critical
Publication of EP0152137B1 publication Critical patent/EP0152137B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/004—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft with weave pattern being non-standard or providing special effects
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0036—Multi-layer screen-cloths

Definitions

  • the present invention relates to a fabric, in particular to a fabric or felt for draining and drying strips of paper in paper machines, this fabric having at least two longitudinal zones.
  • the present invention aims to solve the problem indicated above, without requiring a complicated weaving process or subsequent treatment of the fabric formed.
  • a canvas in particular a fabric or felt for draining and drying strips of paper in paper machines, having at least two longitudinal zones, this canvas being characterized in that at least one of the longitudinal zones has a first type of connection or weave between the warp threads and the weft threads by which the part of the warp threads passing over the weft threads and situated in front of the paper strip forms a first contact surface with this strip of paper and in that at least one other longitudinal zone of the fabric has a type of weave between the warp threads and the weft threads which is different from the first type of weave and whereby the part of the warp threads passing over the weft threads and situated in front of the paper strip forms a contact surface therewith which is different from the first contact surface mentioned above.
  • the fabric comprises a central longitudinal zone having said first type of armor and, on either side of the central zone, at least one lateral zone each having a type of armor , which is different from the first type of weave and by which the part of the warp threads passing over the weft threads and located in front of the paper strip forms a contact surface therewith which is different from the aforementioned first contact surface, the types of armor of the aforementioned lateral zones possibly being mutually identical or different.
  • FIG. 1 is schematically illustrated a fabric preparation device according to the invention, in a very simple embodiment.
  • This weaving loom comprises a first beam 1, a thread-carrying roller 2 which returns the warp threads unwound from the beam 1 in the direction of the blades 3 and 3 ′, spanning rods 4 which order the threads of
  • this loom further comprises a second beam 13 from which takes place a second series of warp threads, a second thread-carrying roller 14 and a second set of spanning rods 15 as well as second blades 16, 16 'and 16 "and a second comb 17.
  • the shuttle 9 is used to insert the weft thread 10 into the crowds of the two looms simultaneously.
  • the heddles of the blade 3 support three non-adjacent warp threads 7 in the high position and the healds of the other blade 3 ′ the three remaining warp threads in the low position.
  • the warp threads 7 are also across the width of the chain, alternately in the high and low position.
  • the heddles of the blade 16 support two warp threads in the high position, these two threads being separated from each other by two warp threads, the heddles of the blade 16 'support in the high position the two adjacent warp threads to those supported by the blade 16 and the heddles of the blade 16 "support in the low position the two remaining warp threads.
  • a fabric is thus obtained whose connections between the warp threads and the weft thread are different over two longitudinal zones A and B of the fabric. It should be noted that these zones are woven together in a single weaving operation and that there is no additional operation to be planned for their preparation, such as for example sewing or welding the two zones.
  • FIG. 2 is given to illustrate the difference in the connections between warp threads and weft threads on a fabric obtained.
  • the fabric shown is a double fabric and the warp threads 7 are shown in hatched form. It must be taken into account that the weft threads 10 remain relatively straight during weaving and that only the warp threads form the potential contact surface with the strip of paper to be drained and dried. It is therefore particularly clear from this figure that the longitudinal area C has a contact surface (hatched area) significantly larger than its neighboring area D, while the area E has an intermediate contact area, of value close to that of the zone C.
  • the density of the wires of the fabric does not vary over the width of the fabric and that it is only the connections of the wires, and therefore the contact surface, which varies over the width of the fabric. It could of course also be envisaged to vary, for example, the number of warp threads in a given area.
  • FIGS. 3 and 4 represent a view in longitudinal section through the area A and respectively the area B of the fabric illustrated in FIG. 1.
  • FIGS. 5 to 7 represent a view in longitudinal section through the areas C, D and respectively E of the fabric according to FIG. 2. These examples illustrate in particular areas of fabric obtained by weaving, in a known manner, with a double crowd. There is therefore then insertion of several weft threads simultaneously or possibly successively.
  • the embodiment illustrated in FIG. 6 (zone C) allows a very large contact surface and a very high pressing force and is therefore intended for the longitudinal zones of the strip of paper whose moisture content is very high.
  • the moisture content of a strip of paper is, in its central longitudinal region, different from that of its marginal regions.
  • This phenomenon is illustrated by the graph in FIG. 8 which shows the width of the paper strip on the abscissa, for example 7 m, and the moisture content on the ordinate. It can be seen from this graph that the marginal zones are drier than the central zone.
  • the drip and drying fabric then preferably comprises a central longitudinal zone ensuring a relatively high contact surface between this zone and the more humid central zone of the paper strip and, on either side of this central longitudinal zone. , longitudinal zones ensuring a relatively lower contact surface. The variation of the pressing force thus obtained over the width of the paper strip allows it to be drained and uniformly dried over its entire width.
  • this arrangement of the longitudinal zones of the fabric is provided as a function of the paper to be dried.
  • the paper has more humid areas at the edges and a drier central area and, in this case, the arrangement of the areas of the fabric is reversed with respect to the embodiment described above.
  • a canvas area with a suitable contact surface will be provided for each edge.
  • the contact surface varies, across the width, constantly increasing or decreasing from the central area towards the edges of the fabric.
  • the production of a fabric having any variation in contact surface over its width can in any case be envisaged according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Woven Fabrics (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Materials For Medical Uses (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Coloring (AREA)
  • Photographic Developing Apparatuses (AREA)
EP85200110A 1984-02-15 1985-02-01 Toile, procédé pour sa préparation et dispositif pour la mise en oeuvre d'un tel procédé Expired EP0152137B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85200110T ATE29157T1 (de) 1984-02-15 1985-02-01 Siebgewebe, verfahren und vorrichtung zu dessen herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8402271 1984-02-15
FR8402271A FR2559511B1 (fr) 1984-02-15 1984-02-15 Toile, procede pour sa preparation et dispositif pour la mise en oeuvre d'un tel procede

Publications (2)

Publication Number Publication Date
EP0152137A1 EP0152137A1 (fr) 1985-08-21
EP0152137B1 true EP0152137B1 (fr) 1987-08-26

Family

ID=9301056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85200110A Expired EP0152137B1 (fr) 1984-02-15 1985-02-01 Toile, procédé pour sa préparation et dispositif pour la mise en oeuvre d'un tel procédé

Country Status (6)

Country Link
EP (1) EP0152137B1 (fi)
AT (1) ATE29157T1 (fi)
DE (1) DE3560517D1 (fi)
FI (1) FI81623C (fi)
FR (1) FR2559511B1 (fi)
NO (1) NO162869C (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2787527B2 (ja) * 1992-11-09 1998-08-20 株式会社キクチウエブテック 織物／プラスチックシートの結合構造体
DE19728399A1 (de) * 1997-07-03 1999-01-07 Voith Sulzer Papiermasch Gmbh Maschine zur Herstellung einer kontinuierlichen Materialbahn
FR3002550B1 (fr) * 2013-02-22 2015-07-17 Aircelle Sa Metier a tisser a cadres cote-a-cote, procede de tissage utilisant un tel metier et preformes ainsi tissees.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426806A (en) * 1966-04-13 1969-02-11 Sulzer Ag Warp let-off motion
DE2533763B1 (de) * 1975-07-29 1976-11-04 Grosse Webereimaschinen Gmbh Leisten-jacquardmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925832A (en) * 1958-07-18 1960-02-23 Ernest R Bowser Satin weave with twill effect
US4231401A (en) * 1978-06-16 1980-11-04 Unaform, Inc. Fabric for papermaking machines
CA1155370A (en) * 1980-10-16 1983-10-18 Huyck Corporation Dryer fabric and method of making it

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426806A (en) * 1966-04-13 1969-02-11 Sulzer Ag Warp let-off motion
DE2533763B1 (de) * 1975-07-29 1976-11-04 Grosse Webereimaschinen Gmbh Leisten-jacquardmaschine

Also Published As

Publication number Publication date
DE3560517D1 (en) 1987-10-01
ATE29157T1 (de) 1987-09-15
FI81623B (fi) 1990-07-31
EP0152137A1 (fr) 1985-08-21
NO162869C (no) 1990-02-28
NO850582L (no) 1985-08-16
FI850595L (fi) 1985-08-16
FI850595A0 (fi) 1985-02-13
FR2559511B1 (fr) 1987-01-09
FI81623C (fi) 1990-11-12
NO162869B (no) 1989-11-20
FR2559511A1 (fr) 1985-08-16

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