US2725736A

US2725736A - Warp knitted fabric or garment

Info

Publication number: US2725736A
Application number: US234868A
Authority: US
Inventors: Netscher Arend Frans; Fraenkel Helena Netscher
Original assignee: MIJ NV
Current assignee: MIJ NV; N V Mij
Priority date: 1950-07-07
Filing date: 1951-07-02
Publication date: 1955-12-06
Anticipated expiration: 1972-12-06
Also published as: DE887098C; GB736292A; FR1039395A; CH292763A; BE504157A; NL69910C

Description

Dec. 6, 1955 A. F.'NETSCHER ETAL 2,725,736

WARP KNITTED FABRIC 0R GARMENT Filed July 2, 1951 2 Sheets-Sheet 1 Dec. 6, 1955 Filed July 2 1951 A. F. NETSCHER ETAL WARP KNITTED FABRIC 0R GARMENT FIG. 3

2 Sheets-Sheet 2 A. F- NETSCHER H NETSCHER-FRAENKEL INVENTORS Syd/MM, MWM' ATTORNEYS United States Patent WARP KNITTED FABRIC 0R GARMENT Arend Frans Netscher and Helena Netscher Fraenkel, s-Hertogenbosch, Netherlands, assignors to N. V. Maatschapnij, Tot Exploitercn Van Octrooicn en Licenties Matepa, s-Hertogenbosch, Netherlands, a corporation of the Netherlands Application July 2, 1951, Serial No. 234,868

Claims priority, application Netherlands July 7, 1250 2 Claims. (Cl. 66-175} The invention relates to a method for the manufacture of a warp tricot, i. e. a fabric knitted from a number of threads binding each other and in which the number of workingor knitting threads corresponds with the number of loops and stitches of the first row.

Although warp tricot of the usual kind is by far more ladderproof than ordinary tricot, it is not ladderproof to such an extent that laddering is effectively prevented in warp tricot.

It is the object of the invention to improve this, to which end, according to the invention, the binding of the warp threads is obtained by periodically twisting each warp thread at least once round at least one adiacent warp thread, before forming a subsequent stitch lying in line and level with the preceding stitch.

By this so-called twisting round, a kind of pinching effect on the threads results at the places where the thread is twisted round, when the knitted fabric, e. g. a stocking is under pressure, e. g. on a leg; this pinching effect prevents a hole in the fabric, caused by a local rupture of the thread, to grow larger, as on either side of this hole a tying off is caused by the said pinching effect, so that only a few loops can get loose.

The invention also comprises tricot goods, such as a stocking, a piece of underwear, a vest etc. obtained by applying the abovernentioned method according to the invention.

A further object of the invention is to provide a warp knitted fabric formed of Warp threads knitted into courses, each warp thread being looped into a chain of stitches, and twisted about an adjacent warp thread at least in the alternate courses and each warp thread before being formed into a next loop in the chain of stitches to which the next loop belongs, being first twisted about at least one adjacent thread.

Other and further objects of the present invention will appear from the more detailed description set forth below, it being understood that such detailed description is given by way of illustration and explanation only and not by way of limitation, since various changes therein may be made by those skilled in the art Without departing from the scope and spirit of the present invention.

In connection with that more detailed description, there is shown in the drawings, in which:

Fig. 1 is a more than full-size representation of a warp tricot according to the invention;

Fig. 2 is a corresponding representation of another embodiment of the warp tricot;

Fig. 3 is a typical garment using the warp knitted fabric of the invention. Fig. 3 is related to Figures 1 and 2 which on a larger scale show embodiments of the encircled portions A and B respectively in Figure 3.

In Fig. l a knitted fabric according to the invention is shown, in which the number of loops or stitches of a row corresponds with the number of knitting threads. These knitting threads, functioning as warp threads are indicated by 1, 2, 3 and 4. The binding of each warp thread to the warp thread adjacent on the left and on the right, is obtained by twisting the warp thread first round the 2,725,736 Patented Dec. 6, 1955 warp thread adjacent on the left and thereupon round the Warp thread adjacent on the right and to form a subsequent stitch in the warp thread in question in line and level with the preceding stitch. On contemplating Fig. 1, it appears that e. g. the knitting thread 2 has been twisted round at 5, i. e. has been twisted round the knitting thread 1 and after this twisting round at 5 is led back to the path of the loops 6, 7, 8, 9 of this knitting thread 2 itself. The bindings of the knitting threads 1 and 2, obtained by twisting the knitting thread 2 round the knitting thread 1, are indicated in Fig. 1 by 5, 1t}, 11 and 12. What has been mentioned about the binding of the knitting thread 2 to the knitting thread 1 also applies to the knitting thread 3 with respect to the knitting thread 2, etc.

In this embodiment the places where the knitting thread 2 has been twisted'round the knitting thread 1, are lying on the same level with the places where the knitting thread 3 has been twisted round the knitting thread 2, etc.

In deviation therefrom, in the knitted fabric shown in Fig. 2 which in principle is based on the same method as the knitted fabric according to Fig. 1, the knitting thread 14 has been twisted round at 17, i. e. twisted round the adjacent knitting thread 13 on the left, but the place where the knitting thread 14 has been twisted round the adjacent knitting thread 15 on the right is not on the same level with the above-mentioned place 17, but leaps a loopor stitch length with respect to the latter place. The place 17 where the knitting thread 14 has been twisted round the knitting thread 13 is again on the same level with the place 19, where the knitting thread 16 is twisted round the knitting thread 15, etc.

In both knitting examples of Figs. 1 and 2 the places where the threads are twisted round each other form the points where the twisted knitting threads are pinched,

which threads at these points come to lie between the knitting thread round which they have been twisted on one side and on the other side the surface against which the knitted fabric lies in a stretched position, e. g. a leg if the knitted fabric is a stocking. These points of pinching prevent a hole caused by a local rupture of the thread to grow larger.

It will be clear that the warp thread may be twisted once or more times round an adjacent warp thread, just as the twisting round of the thread may precede each stitch or a number of stitches may be formed between each twisting round of the thread.

On reaching the last knitting thread, it is either possible to recommence with the first knitting thread or to knit back in reversed order.

We claim:

1. A warp knitted fabric formed of warp threads knitted into courses, each warp thread being looped into a chain of stitches, and twisted about an adjacent warp thread at least in the alternate courses and each Warp thread before being formed into a next loop in the chain of stitches to which the next loop belongs, being first twisted about at least one adjacent thread.

2. A tricot garment of a warp knitted fabric which is formed of warp threads knitted into courses, each warp thread being looped into a chain of stitches, and twisted about an adjacent warp thread at least in the alternate courses and each warp thread before being formed into a next loop in the chain of stitches to which the next loop belongs, being first twisted about at least one adjacent thread. 7

Germany Nov. 26, 1897 Germany Sept. 15, 1922