US1993766A - Knitted fabrics and the manufacture thereof - Google Patents

Knitted fabrics and the manufacture thereof Download PDF

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Publication number
US1993766A
US1993766A US636296A US63629632A US1993766A US 1993766 A US1993766 A US 1993766A US 636296 A US636296 A US 636296A US 63629632 A US63629632 A US 63629632A US 1993766 A US1993766 A US 1993766A
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Prior art keywords
threads
knitted
fabric
courses
knitting
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US636296A
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English (en)
Inventor
Welch Sidney Arthur
Sills Thomas
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Celanese Corp
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Celanese Corp
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    • 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

Definitions

  • This invention relates to knitted fabrics and manner. After being knitted into one Wale, each their manufacture, and in particular to. warp thread of one thread bar is drawn through a space knitted fabrics.
  • the object of the invention is to produce a one needle, drawn back through another pair of fabric of woven appearance in which the usual needles and then knitted.
  • the thread is then 5 characteristics of warp knitted fabrics are more moved forward through the same space through or less suppressed and replaced by a grained which it was drawn back, moved to the right effect.
  • the thread is v a series of threads is fed by means of a number then moved to the left behind one needle, then 10. of guides to a series of needles. The needles are forward between two needles, moved to the left operated simultaneously at each course to knit across one needle again, drawn back and knitted.
  • vention is produced from two sets of warp threads, Each thread of the back series of threads, which one of which, instead of moving regularly across produces the foregoing effect of the invention,
  • the needles at successive courses is periodically and ultimately forms the front of the fabric, is 2 moved forward and back between needles withpassed between two needles, moved to the right, out an intermediate cross-wise motion.
  • a'reand back, and knitted is then moved past three sult, the threads which are passed between neeneedles behind the needles, and forward and back dles in both directions without an intermediate without an intermediate cross-wise motion, after cross-wise motion are not lapped across the which knitting takes place, but not upon the beards of the needles and in consequence are not threads of this set, which are nevertheless locked knitted into the fabric in the exact sense of the into position by the crossing 'over them of the term knitted, that is to say, are not drawn threads of the other set.
  • the threads are then down by the needles to form loops, but are laid moved past three needles to the left, forward, to
  • each complete cycle of each 40 thread guides between needles is preceded by a set of threads covers a sequence of eight betweencross-wise motion of considerable extent across needle movements and four courses of knitting, the back of the needles, i. e. a motion crossing there being a forward and a backward betweenmore than one needle, and in this case it is prefneedle motion for each knitting course.
  • Each erable to relieve the tension of the threads taking thread of the front set of threads has a sideways 45 pa t i the considerable movement.
  • the threads of the back bar follow a motion expressed by the series 2:3; 5:5; 3:2; 0:0. That is, the threads move forward through space 2, across to space 3, and back, and are knitted; across to space 5, forward and back through space 5, after which knitting takes place though not upon these threads, since they have not been crossed in front of the beards of the needles between the forward and backward motion.
  • the threads then move across to space 3, forward, across to space 2, and back, and are knitted; across to space 0, forward, and back, after which knitting takes place, and then across to space 2, after which the cycle recommences.
  • the invention is in no way limited to fabrics embodying the particular sequence of thread movement specified above, and that modifications can be made in the amount of lapping taking place behind the needles prior to passing in and out between the needles, and, generally, in the knitting sequence which may take place before repetition occurs.
  • a different form of fabric can be produced by displacing the cycle of one bar with respect to the cycle of the other. Taking the sequence given above, this may be replaced in the second bar by a sequence 0:0; 2:3; 5:5; 3:2.
  • the result of this change is that when the threads of one set are in their mean position, the threads of the other set are to one side of the mean position. It is preferred, however, as in the example as first given, that the threads should be at their mean positions at the same time before they move sideways from their mean position, either in the same direction or in opposite directions, but preferably in opposite directions.
  • a cycle which gives successful results involves a motion of the front bar in the sequence 1:2; 2:3; 2:1; 1:0; and of the back bar in the sequence 2:3; 5:5; 2:3; 5:5.
  • the front bar sequence of this, and of most of the fabrics according to the invention may be modified by reversing the numbers of one or more pairs of between-needle motions.
  • the front bar sequence 1:2; 2:3; 2:1; 1:0 may be changed to 1:2; 3:2; 2:1; 0:1.
  • the above modifications all extend over at least three wales, and over four courses of knitting, and to produce a well marked effect, this magnitude of motion is preferred.
  • the wales or courses may be made finer by reducing the magnitude of the wale motion, or the number of courses to the repeat respectively.
  • the front bar may follow a sequence 2:1; 1:0, and the back bar a sequence 1:1; 2:3. It will be seen here again, that the back bar moves forward and back through the same space 1 without an intermediate cross-wise motion prior to knitting.
  • sequence may be used in a number of different ways by starting at different points of the sequence in the manner previously described. Further, as also described above, the sequence may be modified by interchanging the numbers of one or more pairs of the sequence, or, in the case of symmetrical cycles, by repeating the first or the second half to produce a new cycle. Again the-number of possible sequences is greatly multiplied by the possibility of using different back bar sequences for a given front bar sequence.
  • the front bar sequence 1:2; 2:3; 2:1; 1:0, or any of its variations may be used either in connection with the symmetrical back bar sequence 2:3; 5:5; 3:2; 0:0, or in connection with the first half of that cycle repeated, i. e.
  • sequences may be changed during knitting to give pattern effects or to produce a coarser surface effect in any desired manner.
  • the threads of one bar should be carried across and behind the needles, lapped into the fabric without knitting and held by the crossing of the threads of the other set.
  • the effects generally produced in fabrics according to the invention may range from a smooth serge-like effect of relatively fine figure to a coarse rep effect, and form a crepe-like effect of any degree of fineness to the effect of a fine pile fabric, produced by short, free loops of thread on the surface of the fabric.
  • the fabric according to the invention may be knitted from any suitable kind of yarn.
  • it may be knitted from yarns, either matt or lustrous, consisting of wool, cotton, silk, artificial materials such as cellulose actate or other organic derivatives of cellulose, or viscose, cuprammonium, or nitrocellulose artificial silk.
  • the yarns may consist of staple fibres of continuous filaments such as natural silk or cellulose actate or other artificial materials as mentioned above.
  • more than one kind of yarn may be employed in the fabric; for example diiferent yarnsmay be employed in the front and back sets respectively, e. g., matt yarns in one set, and lustrous yarns in the other.
  • the face of the fabric may be knitted with cellulose acetate yarn while the back of the fabric is knitted with wool.
  • the invention is, however, more especially applicable to the production of fabrics from continuous filament yarns, such as for example cellulose acetate or other cellulose derivative yarns, such fabrics possessing a fine structure as well as the distinctive grained appearance characteristic of the invention.
  • the yarns employed may have a high or very high twist, such as crepe twist in order to exaggerate the grainy effect on the face of the fabric due to the sideways positions of the knitted loops'and the combined action of the two sets of threads in the fabric.
  • Figures 1 and 2 show diagrammatically, views of two fabrics according to the invention, these views showing what is normally the back of the fabric, but in the present instance is to be regarded as the face.
  • Figs. 3 and 4 show diagrammatically the move 76 ments of the thread guides necessary to produce the fabrics shown in Figs. 1 and 2, respectively.
  • y In Figure 1 the threads of the front bar, which are shown corded, perform the movement indicated by the numbers 2:1;223; 3:4; 3:2; while the threads of the back bar, which are shown plain carry out the movement :0; 2:3; 5:5; 3:2.
  • the thread 5' being a front bar thread, shown corded, while the thread 6 is a back bar thread and is shown plain.
  • the two free threads clearly show the individual course of the threads, while the complete section of fabric indicated above, having a series of front bar threads 7, and a series of back bar threads 8, shows the interrelationship between the threads as two series of threads.
  • the threads 8 are laid in the fabric at points 9 and 10 and it' will beseen that after this laying inv movement has been completed, floats of the corded threads 7 cross over the soformed loops at 11 and 12, and hold the loops in position.
  • the points 9 represent the laying in movement 0:0 of the threads 8 while the points 10 represent the laying in movement 5:5, each thread being passed through the same space in successive between-needle motions, i. e. both in the motion in and in the motion out.
  • FIG 2 a somewhat simpler fabric is illustrated in which the threads of the front bar, shown corded at16, carry out the movement indicated by the numbers 1:0; 2:1; while threads of the rear bar, shown plain at 17, carry out the movement 1:2; 0:0.
  • a single plain thread 18 of the back bar and a single corded thread 19 of the front bar are shown at the bottom of the figure to indicate the individual movements of the thread.
  • the plain threads are laid in" the fabric at points indicated at 20', and a float thread of the front bar subsequently passes over each of the loops so formed as illustrated at 21.
  • threads of both front .and back bars are knitted into the fabric, while in the courses 23 only the threads of the front bar are knitted in, the threads of the back bar being laid in" as at 20.
  • Fig. 4 shows the thread guide tracks for the fabric shown in Fig. 2, in the same way as Fig. 3 shows thosein connection with Fig. 1.
  • the laying in movements are shown at 20' and the lapping in front of the needles at 22 and 23', corresponding respectively to the loops 22 and 23 of Fig. 2.
  • a warp knitted fabric comprising at least two sets of warp threads, at least one of which has its threads knitted into some courses, and
  • a warp knitted fabric comprising atleast two sets of warp threads, at least one of which.
  • a warp knitted fabric comprising at least two sets of warp threads,at least one of which has its threads knitted into some courses, and laid into others, each of such threads crossing wales of the fabric between successive points at which it is knitted or laid in, the threads of another set being knitted into every course.
  • a warp knitted fabric comprising at least two sets of warp threads, at least one of which 'has its threads knitted into some courses, and
  • a warp knitted fabric comprising at least two sets of warp threads, at least one of which has its threads knitted into alternate courses, and laid into intervening courses, each of such threads crossing at least two wales of the fabric in opposite directions in proceeding to and from each point at which it is laid in, the threads of another set being knitted into. the courses at which the threads of the one set are laid in.
  • a warp knitted fabric comprising at least two sets of warp threads, at least one of which has its threads knitted into some courses, and laid into others,'such threads being slacker than the remainder, and crossing wales of the fabric between successive points at which they are knitted or laid in, the threads of another set being knitted into the courses at which the threads of the one set are laid in.
  • a warp knitted fabric comprising at least two sets of warp threads, at least one of which has its threads knitted into alternate courses, and laid into intervening courses, each of such threads crossing at least two wales of the fabric in opposite directions in proceeding to and from each point at which it is laid in, such threads being slacker than the remainder, the threads of another set being knitted into the courses at which the threads of the one set are laid in.
  • a process for the production of warp knitted fabrics comprising knitting at least two sets of warp threads, knitting the threads of at least one of said sets into some courses, and, after lapping, passing said threads through the needles and back at other'courses so as to lay them into the fabric and knitting the threads of another of said sets into the courses in which the threads of the one set are laid.
  • a process for the production of warp knitted fabrics comprising knitting at least two sets of warp threads, knitting the threads of at least one of said sets into alternate courses, and, after lapping, passing said threads through the needles and back at intervening courses so as to lay them into the fabric and knitting the threads of another of said sets into the courses in which the threads of the one set are laid.
  • a process for the production of warp knitted fabrics comprising knitting at least two sets of warp threads, knitting the threads of at least one of said sets into some courses, and, after lapping, passing said threads through the needles and back at other courses so as to lay them into the fabric and knitting the threads of another of said sets into every course.
  • a process for the production of warp knitted fabrics comprising knitting at least two sets of warp threads, knitting the threads of at least one of said sets into some courses, and passing said threads through the needles and back at other courses so as to lay them into the fabric, such threads being lapped over at least two wales in opposite directions before and after being so laid in, and knitting the threads of another of said sets in every course.
  • a process for the production of warp knitted fabrics comprising knitting at least two sets of warp threads, knitting the threads of at least one of said sets into alternate courses, and passing said threads through the needles and back at intervening courses so as to lay them into the fabric, such threads being lapped over at least two wales in opposite directions before and after being so laid in, and knitting the threads of another of said sets into every course.
  • a process for the production of warp knitted fabrics comprising knitting at least two sets of warp threads, knitting the threads of at least one of said sets into some courses, and, after lapping, passing said threads through the needles and back at other courses so as to lay them into the fabric, such threads being fed more slackly than the rest, and knitting the threads of another of said sets into the courses in which the threads of the one set are laid.
  • a process for the production of warp knitted fabrics comprising knitting at least two sets of warp threads, knitting the threads of at least one of said sets into some courses, and passing said threads though the needles and back at other courses so as to lay them into the fabric, such threads being lapped over at least two wales in opposite directions before and after being so laid in, and being fed more slackly than the rest, and knitting the threads of another of said sets into every course.
  • a process for the production of warp knitted fabrics comprising knitting at least two sets of warp threads, knitting the threads of at least one of said sets into alternate courses, and pass-'- ing said threads through the needles and back at intervening courses so as to lay them into the fabric, such threads being lapped over at least two wales in opposite directions before and after being so laid in, and being fed more slackly than the rest, and knitting the threads of another of said sets into every course.
  • Figs. 3 and 4 show diagrammatically the movements of the thread guides nec to produce the fabrics shown in Figs. 1 and 2 respectively.
  • Page 4 first column, line 9, claim 11, for "in” read into; and that the said Letters Patent should be read with these corrections therein that the same may conform t the record of the case in the Patent Office.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Woven Fabrics (AREA)
US636296A 1931-10-19 1932-10-05 Knitted fabrics and the manufacture thereof Expired - Lifetime US1993766A (en)

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GB29058/31A GB391165A (en) 1931-10-19 1931-10-19 Improvements in or relating to knitted fabrics and their manufacture

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US1993766A true US1993766A (en) 1935-03-12

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US636296A Expired - Lifetime US1993766A (en) 1931-10-19 1932-10-05 Knitted fabrics and the manufacture thereof

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FR (1) FR743854A (enrdf_load_html_response)
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608079A (en) * 1952-08-26 slater
US2667775A (en) * 1951-10-24 1954-02-02 Fredric L Aibel Knitted fabric
US2985002A (en) * 1961-05-23 aibel
US3027738A (en) * 1962-04-03 Turton
US3208451A (en) * 1959-02-26 1965-09-28 Celanese Corp Sanitary napkin
US3453844A (en) * 1964-08-27 1969-07-08 Onderzoekings Inst Res Bulky warp-knit fabrics

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608079A (en) * 1952-08-26 slater
US2985002A (en) * 1961-05-23 aibel
US3027738A (en) * 1962-04-03 Turton
US2667775A (en) * 1951-10-24 1954-02-02 Fredric L Aibel Knitted fabric
US3208451A (en) * 1959-02-26 1965-09-28 Celanese Corp Sanitary napkin
US3453844A (en) * 1964-08-27 1969-07-08 Onderzoekings Inst Res Bulky warp-knit fabrics

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GB391165A (en) 1933-04-19

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