FR2616160A1 - Plain velour knit obtained on a circular loom with picked up stitches - Google Patents

Abstract

Plain velour knit obtained on a circular loom with picked up stitches, consisting of a jersey base having, on its right side, loops stitched into the said base, which loops are shaved after knitting in order to form the pile, characterised by the fact that each row of the knit includes at least two lines of loops 3, 4 of which the stitching into the jersey base 1 is offset by one line with respect to the other.

Description

VELVET KNIT UNI OBTAINED ON A CIRCULAR JOB A
PICKED MESH.

 The present invention relates to a new type of plain velvet knitting produced on a circular loom with picked stitches.

 Velvet knits made on a circular loom with picked stitches have been known for a very long time and are obtained by shaving loops formed during knitting.

 Currently, to make velvet on a circular knitting loom, three types of conventional machines are used, namely, stitching machines, single needle multi-fall looms and double needle looms.

 The greatest production is carried out on circular looms on the one hand multi-falls double needle bed which consist essentially of a plate and a cylinder, the plate being provided with conventional needles and the cylinder being equipped with hooks or needles without spout, these elements being arranged in a manner similar to that of the Interlock looms and, on the other hand, over single-loom looms, the loops being formed on plates.

 The process used to make pile articles on these looms consists, schematically, in successively knitting two threads with each fall, the first known as "ground thread", being picked by the needles and forming jersey, the second known as " pile ", being picked up by the needles and the hooks or plates of the cylinder, so as to form jersey on the needles and to loop around the hooks or plates of the cylinder, said loops being released before the fall of the next knitting. In this way, a knitted fabric is formed, the underside of which is constituted by a jersey structure and which has loops formed on its place by the thread which has surrounded the cylinder hooks. The height of the loops depends in particular on the spacing between the plate and the cylinder or the height of the plates, as well as the picking of the needles and the hooks of the cylinder if necessary.

 The knitted fabric is then shaved in a conventional manner in order to open the strands forming the loops.

 Optionally, for certain applications in which it is desired to keep the article its curly appearance, shaving can be omitted.

 If in such articles, the bristles are perfectly held with the bottom, since meshed with the latter, it is however not possible to obtain a very high density.

 Now we have found, and this is what is the subject of the present invention, a new type of plain velvet knitting also obtained on a circular knitting machine with picked stitches which makes it possible to overcome this drawback and to obtain articles for very dense hairs.

 In general, the new velvet knit according to the invention consists, in a manner similar to the plush knitwear or earlier loops, of a jersey bottom in which the threads forming the loops are meshed and are characterized by the fact that each row of the knitted fabric has at least two loop threads, the mesh of which with the jersey bottom is offset by one thread with respect to the other.

 According to a simple embodiment of a knit according to the invention, comprising two loop threads per row of knit, the mesh of said loop threads is formed for each of the two threads alternately on the even and odd needles.

 According to another embodiment, the mesh of the two threads with respect to each other with the jersey bottom can be produced according to a sequence of two needles for an offset between the two threads.

Such a knitting can be carried out on a loom of known type allowing, for each work system forming a row of stitches, to distribute a plurality of threads, one forming jersey, the others of the floats between needles, for example a loom like
MAYER MCP Gauge 20.

The invention and the advantages which it brings will however be better understood thanks to the two exemplary embodiments given below by way of indication but not limitation and which are illustrated by the attached diagrams in which
- Figures 1 and illustrate the basic weave of a velvet knit according to the invention
- Figures 2 and 2a illustrate a variant of a weave, in which the pile threads are knitted in a staggered manner from one row to another, in particular in order to improve the appearance of such a knit.

 Figure 1 is a diagram showing in a decomposed manner the work of each thread in a weave making it possible to produce a row of a velvet knit according to the invention, the fig illustrating it schematically how the two threads forming the loops are presented (bristles) relative to the jersey bottom of the knitted fabric.

 Figures 2 and 2a illustrate a second embodiment according to the invention in which the basic weave is made on two rows of knitting, the work of each of the threads being broken down in Figure 2 and Figure 2a showing two rows of the basic weave of such a knit.

 In both cases, knitting is carried out on a circular loom, in which each working system enabling a row of knitting to be produced is designed so that at least three different threads can be distributed to the needles, the first (1) being distributed in all the needles (2) so that, after slaughter, it forms a jersey bottom and the other two threads (3) and (4) being distributed in staggered rows with respect to said needles so as to form floats between these needles.

 After felling of these three threads, the knitting has a structure of the type illustrated in the diagram (fig. La), that is to say that the two threads of bristles (3,4) trapped with the bottom are, if we consider a row seen from above, located in the same plane.

 In the variant illustrated in FIG. 2, the basic weave is produced on two systems, the pile threads being distributed to the needles not only in an offset manner within each row, but also from one row to the next. and which makes it possible to obtain a knitted fabric having the structure shown diagrammatically in FIG. 2b.

Knits were made on a MAYER loom
MCP Gauge 20 from such armor using
- for the bottom threads (1) forming the jersey
polyester thread 167 Dtex 32 strands textured FTF
- for pile threads (3,4): polyester threads
wool (60/40) 294 Dtex.

 After cutting the loops and shaving, we obtain a velvet knit weighing about 400 grams per square meter and whose hairs have a very high density which, compared to previous articles made in a conventional manner, can be estimated at twice that of the latter .

Claims (3)

 1 / Plain velvet knit obtained on a circular loom with picked stitches, consisting of a jersey bottom having on its right side knitted loops with said bottom, loops which are shaved after knitting to form the pile, characterized in that each row of knitting comprises at least two loop threads (3,4), the mesh of which with the jersey bottom (1) is offset by one thread with respect to the other.  2 / Velvet knit according to claim 1, characterized in that it comprises two loop threads (3,4) per row of knitting, the mesh of said loop threads being formed for each of the two threads alternately on the even needles and odd.  3 / Velvet knit according to claim 1, characterized in that it comprises two loop threads (3,4) per row of knit, the mesh of the two threads relative to each other with the jersey bottom being made in a sequence of two needles for an offset between the two threads. AGENT: Cabinet Michel LAURENT DEPOSITOR: TEXTILES AND PLASTICS CHOMARAT