Classifications

• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
  • D03J1/00—Auxiliary apparatus combined with or associated with looms
  • D03J1/02—Auxiliary apparatus combined with or associated with looms for treating warp, e.g. cleaning, moistening
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
  • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
  • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
  • D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller

Definitions

• the present invention relates to an improved process for producing a warp and weft fabric; it also relates to an improved weaving machine allowing the implementation of such a process.
• warp and weft fabrics implies, before the actual weaving operation, that a succession of preparation operations must be carried out both with regard to the weft threads and the warp threads.
• warp yarns if some can be used without particular treatment, in particular when they have received sufficient twist or a specific treatment, such as an interlacing treatment in the case of yarns with continuous filaments, it is well known that to resist the stresses due to friction during the weaving operation, that after warping, the ply of threads must receive a sizing treatment carried out simultaneously on all of the warp threads by passing inside a bath of suitable composition making it possible, on the one hand, to agglomerate the elementary strands of the yarns, without however harming their elasticity so as to have good resistance to friction and to the variations in tension imposed on the loom, and on the other hand, which allows the threads to be properly lubricated to improve their sliding characteristics during the weaving phase.
• a sizing treatment carried out simultaneously on all of the warp threads by passing inside a bath of suitable composition making it possible, on the one hand, to agglomerate the elementary strands of the yarns, without however harming their elasticity so as to have good resistance to friction and to
• Such a gluing operation is delicate to carry out, complicates the manufacturing cycle and therefore involves two successive phases of winding the web of warp yarns, one during the actual warping, the second which consists of unwinding the tablecloth previously warped during the sizing operation to return it, after sizing, on the beam intended to be mounted on the loom.
• the method according to the invention is characterized in that a chain gluing operation is carried out immediately after the ply of warp threads has been called up from the storage beam, and before passing around the detour roller bringing it into the horizontal plane, said sizing or sizing operation being carried out by separating the warp threads into two elementary layers, each layer being treated independently of one another and receiving a sizing liquid, gluing or gluing by licking by passing over a roller partially submerged in a liquid bath.
• the warp ply is subjected to a drying treatment carried out immediately downstream of the impregnation zone, and before the warp yarns reach the level of the detour roller of the weaving loom forming the entrance to the weaving plan itself.
• the two elementary plies are obtained by selecting one thread out of two from the set of warp threads intended to constitute the fabric.
• said ply comprises at each of its ends a "spine" making it possible to obtain, without any particular adaptation, the separation of all the warp son into two elementary plies in the treatment area.
• Figure 1 is a schematic side view showing the chain feed of a weaving loom adapted to implement the method according to the invention
• Figure 2 is a detail view showing the manner in which the separation of the chain ply into two elementary plies is carried out
• Figure 3 illustrates schematically how the impregnation of the elementary plies of warp yarns is carried out by contact on a wetting roller.
• a warped chain is produced comprising the total number of threads (1) corresponding to the article to be produced, and this directly on a beam, designated by the general reference (2), mounted on the loom.
• the warp threads kept flat are therefore brought to the means allowing the formation of the crowd, means constituted by heddles comprising eyelets for guiding the warp thread .
• the shed being formed the weft thread is introduced and then threshing is carried out by means of a comb against the face of the fabric produced, fabric which after passing around an exit detour roll, is returned under the shape of a roll.
• the ply of warp threads (1) is divided in two elementary layers (la, lb).
• the division of the ply of warp threads (1) into two elementary plies (la, lb) is carried out by providing at each end of the warped chain spines (3a, 3b; 4a, 4b) also making it possible to obtain directly on the loom two elementary plies comprising the same number of wires.
• two similar assemblies are used mounted downstream of the detour roller (5) provided immediately at the exit of the beam (2).
• Each of these assemblies comprises, mounted on a frame, said detour roller (5) and two impregnation systems designated by the general reference (6).
• Each impregnation system comprises a tank containing the liquid (sizing or sizing), liquid which is deposited on the wires by tangential contact against immersed rollers (7).
• An additional means can be used to ensure the drying of the sheet after impregnation.
• Such drying can for example be carried out simply in the open air, an additional adjustable roller being provided between the assembly for depositing the sizing product and the detour roller (3).
• an additional adjustable roller being provided between the assembly for depositing the sizing product and the detour roller (3).
• one of the main advantages of the process according to the invention is to allow to halve the son during the impregnation phase, which allows to obtain a better distribution of the sizing liquid.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Treatment Of Fiber Materials (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=8867924

Family Applications (1)

Country Status (4)

Families Citing this family (1)

Family Cites Families (4)

• 2001
  • 2001-10-04 FR FR0112782A patent/FR2830540B1/fr not_active Expired - Fee Related
• 2002
  • 2002-09-30 WO PCT/FR2002/003323 patent/WO2003029543A2/fr not_active Ceased
  • 2002-09-30 EP EP02783227A patent/EP1440194A2/de not_active Withdrawn
  • 2002-09-30 AU AU2002347293A patent/AU2002347293A1/en not_active Abandoned

Non-Patent Citations (1)

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