US2338945A - Knitted fabric - Google Patents

Description

Jan. 11, 1944. J, JUST mm.

KNITTED FABRIC Filed Oct. 28, 1940 T AMT/SEA JUST fl'eAA/r/ six D/n00 Patented Jan. 11,1944

Jan Just, Frantiiek "Just and Frantisek mm. Cerveny Kostelec, Bohemia; vested in the Alien Property Custodian Application October 28,1940, Serial No. 363,234

. InBohemia'July28. 1939 v 1 1 Claim.

invention relates to an improved method -'of enabling knittedfabrics to be mechanically Printed. 4

It is well known that knitted fabrics, such. as ,tricotine or the like are, unlike other fabrics, un-' able to be mechanically printed, and that owing to their excessive stretching'property preventing the desired patternto be precisely transmitted Therefore, (printing goods of said kind was hitherto carried out only onto the knitted fabric.

in a very restricted way, i. e., either manually which, however, is a very; expensive operation,

or in special devices designed particularly forv eliminating temporarily the stretching property 1 of the knitted goods by sticking the latter on a suitable base or by an adequate process where-' upon the knitted fabric is restored to its previous state. 'I'his'procesa'too, is time. wasting andcost- {knittedtricotines or similar goods, and may :be

other guide bar working on the principle under 1 over l'needle according to Fig. 2 producing the front side of the knitted goods. In this manner a binding of the type of an exchanged sateen pattern, wherein the guides would be exchanged.

Hitherto such type of binding had not been used 7 in general technical practice; but it is obvious-that such pattern is most suitable for enabling knitted fabrics to be printed in a textile printing machine.

The fabric thus produced may be; printed in bulk in pieces attaining a length of 100 yards and even more, without their selvedges being. rolled as hitherto in the case of all-fine knitted goods. 'Theknitt'ed fabric thus obtained is very-alike to a woven fabric; is'not stretching and does not I shrink when being washed, unlike the ordinary printed, without any preliminary treatment or ly and therefore could not be introduced in general technical practice.

Thepresent invention enables all types "of j standard printing machines for fabrics to be used without difllculty for handling knitted goods, such feature being attained by eliminating in'a permanentmanner the *stretching property without,

' however, affecting the fundamental characteris-.

tics of knitted goods, 1. e., porosity, easin'ess,v

smooth and agreeable touch etc. v

The main feature of the present invention is that, for enabling the knitted goods to be mechanically printed in ordinary printing machines for treating fabrics, the knitted goods are, from the beginning of their manufacture, treated in, I

. such way that they are deprived of their stretch-v ling property both in longitudinal and in trans versal directions. 'I'hisaim is attained by a special'tfy of binding by means of a suitable warpknitting apparatus provided in the machine, the

elements of said apparatus being correjspondingi- 40 ly adapted for the purpose to be achieved.

A type of binding according to the present invention and whichis especially suitable for the in the accompanying drawing, wherein Fig. 1 shows the binding. of the back warp, Fig. 2 shows the binding of the front warp,

As can be clearly seen. a special double binding is utilized for eliminating the stretching property of the knitted goods, in order to enable the purpose aimed at, is showmb'y way of example,

Epreparation, in the usual printing machines of all kinds without any alteration being necessary of'such machines. It is obvious that 'the m ethod of manufacturing knitted goods according to thepresent invention does not involve any increase of the production costs and that the method ofe p printing the fabrics produced means a higher value of the productat an expenditure by far- L lower than inthe cases' oi' the. methods hitherto existing. v T I It'is to be understood that the aim above disclosed may be attained by bindings similarto that described by way of example in the foregoing statement and to which the present inven-- tion is in no way limited, applying to all bindings resulting in goods .of the same "characteristics enabled to be mechanically printed. I

We claim:

A warp knitted fabric comprising twosets of uniformly arranged yarns, both sets'of threads being united at each wale in each course, all of one setof threads extending diagonally of the V wales fora distance of three wales ,from- .their' respective uniting points in one course to uniting points in the succeeding course, while an or the other set of threads extend from their uniting g points in said first course diagonally of the wales fin an opposite direction for a distance of one Fig. 3 shows both bindingscombined-in the same to be mechanically printed on both sides,

one of the guide bars producing the backside of the knitted fabric shown in Fig. 1 working on wale to uniting points in said succeedingcourse; and then all of the threads of the first-named set extendingdiagonally of the wales and transversely of their first direction for a distance of three wales from said points in said succeeding course to uniting points in the third course, while all'of said other set of threadsextend diagonally I 0f the Wales in an oppositeairecuontosaidfnrst the principle under 3 over 1 needle" and the 1 so set for a distance'of one wale, from'their uniting points in said succeeding course to uniting points in said third course to thereby cause the respective uniting points of each set of threads in said third course to be in the same wales as the uniting points for the same set of threads in said first course, whereby one set of diagonal threads will be united with the other set of oppositely disposed diagonal threads at each wale and at each course, and whereby the diagonal portions of the respective sets of threads will be transversely disposed relative to each other, thereby producing a substantially non-stretchable fabric both in a longitudinal and a transverse direction.

JAN JUST. FRANTISEK JUST. FRANTISEK DAVID.

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