Classifications

• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
  • D04B21/02—Pile fabrics or articles having similar surface features

Definitions

• the present invention relates to an improved process for making a new type of velvet knitting on a loom (chain looms).
• the present invention relates to this technical sector of obtaining velvet on knitted looms.
• the first consists in making work the bottom bar (bar I located at the back of the loom) according to a simple knitting weave 1.0-1.2 and the pile bar (s) (bar II and possibly III) working in open mesh chain 1.0 / 0.1.
• the other solution also consists of working with at least two bars which are made to work alternately in a succession of simple knit weaves (1.0-1.2) and open chain link (1.0 / 0.1).
• Such velvet knits are obtained from a knitting weave in which the front bar forming the loops intended to constitute the hairs of the knitted fabric after treatment, is such that it comprises groups of throws on a needle, separated from one another others by alternating piers under several needles of different value.
• the invention therefore relates to a new improved process which makes it possible to make velvet knitwear on a loom (chain looms), equipped with loops-forming plates and which may comprise only two guide bars , process in which the pile effects are obtained from the front bar of the loom (bar II), the rear bar (bar I) serving to constitute the bottom of the knitted fabric.
• the knitting weave of the front bar (II) forming the loops intended to constitute the hairs of the knitting after treatment is such that it comprises a succession of stitches produced according to a chain weave the flanges of which are arranged around the plates of formation of loops, followed by floats in the warp direction, produced on at least three rows of knitted fabric, floats which extend on the right side and are held pressed against the bottom of said knitted fabric, set back from the loops formed on the plates .
• a new type of velvet knit is obtained which may, compared with previous articles, have an appearance close to solid, but whose weight per square meter is less than a plain conventional, the loss of fibers during shaving is also lower.
• FIG. 1 is the graphic representation of the weave of a knitted fabric produced in accordance with the invention
• Figure 2 is a reproduction of a knitted article according to the invention using the weave of Figure 1;
• FIG. 3 illustrates a weave of a knitted fabric produced in accordance with the invention on a warp loom comprising three guide bars, the bars (II) and (III) making it possible to obtain a pile effect;
• Figure 4 is a reproduction of an article made on the basis of Figure 3 with a threading available a full / empty bars (II) and (III) and; .
• Figure 5 is a reproduction of an article obtained by the implementation of the armor also illustrated in Figure 3, but with a threading of the guide bars available two full / two empty;
• Figure 6 illustrates an alternative embodiment of a knit according to the invention on a loom which has only two guide bars and in which a long flange is produced. Way of realizing the invention
• the threads used for the production of the articles are polyester threads, the threads intended to form the bottom (bar I) having a count of 76 dtex, while the threads intended to form the bristles (bar II and possibly bar III ), are wires with a title of 167dtex.
• a knitting is carried out in accordance with the method according to the invention on a loom comprising two guide bars (B1, B2), these bars being threaded full.
• This knitting is carried out according to a weave of the type illustrated in FIG. 1.
• the rear bar (Bl) therefore forms the bottom of the knitted fabric and works in a simple knit weave 1.0 / 1.2, the yarns under the needles being carried out in the same direction as the movement of the loops forming plates which are moved in a armor 0.0 / 1.1.
• the armor of the front bar (B2) is such that it comprises a succession of meshes produced according to a chain weave 1.0 / 0.1, the flanges of which are arranged around the plates for forming loops, followed by floats in the warp direction 0.0 / 0.0, in the present case made on four rows of knitting, and which therefore extend over the right side of said knitting. .
• the flow rate of the wires of the bar (I) is adjusted to 1210 mm by Rack, while that of the wires of the bar (II) is adjusted to 1440 mm by Rack and varies periodically between the areas of loop formation and that of formation floats.
• the Rack is the unit used for the chain or Rachel looms to designate the length of thread necessary for the formation of 480 rows of stitches in knitting.
• a knitted fabric as illustrated in FIG. 2 which weighs 180 g / m2 and which, after shaving the loops, comprises alternating zones (10,11 ), the zones (10) being constituted by the hairs formed by the threads of the shaved loops, while the zones (11) are, for their part, constituted by parallel threads, arranged longitudinally and pressed firmly against the bottom of the knitted fabric.
• the method according to the invention is implemented on a loom comprising three guide bars and the armor of which are illustrated in FIG. 3.
• the bar (I) forms the bottom of the knitting by working in a 1.0 / 1.2 weave and the bars (II) and (III) form a succession of chain links 1.0 / 0.1 separated from each other by floats offset from a bar to the next.
• the bar (I) is threaded full and the bars (II) and (III) are threaded according to a full / empty rhythm.
• the flow rate of the wires of the bar (I) is del210 mm per Rack and that of the bars (II) and (III) is 1440 mm per Rack and, as in Example 1, varies periodically between the loop formation zones and that of float formation.
• a knitted fabric having a structure of the type shown in FIG. 4 and which is close to a plain shaved loop knitted fabric.
• This knit weighs 180 g / m2. Still with the same weave illustrated in FIG. 3, but by threading the bars (II) and (III) at a rate of two full / two voids which therefore make up areas forming loops and areas of float, we obtain an article of type shown in Figure 5 having velvet areas framed both longitudinally and transversely by floats pressed against the bottom of the knitted fabric.
• Such articles produced in accordance with the invention can be used in numerous applications, in particular for seat coverings, since they have very good abrasion resistance and very good resistance to hair while being of lower weight. to articles produced in a conventional manner.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Knitting Of Fabric (AREA)

Applications Claiming Priority (3)

Publications (1)

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ID=8851887

Family Applications (1)

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Family Cites Families (5)

• 2000
  • 2000-06-29 FR FR0008424A patent/FR2811000B1/fr not_active Expired - Fee Related
• 2001
  • 2001-05-17 WO PCT/FR2001/001513 patent/WO2002000979A1/fr not_active Application Discontinuation
  • 2001-05-17 AU AU2001262442A patent/AU2001262442A1/en not_active Abandoned
  • 2001-05-17 EP EP01936561A patent/EP1294965A1/de not_active Withdrawn

Non-Patent Citations (2)

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