US1841159A - Method of making textile fabrics - Google Patents

Description

Jan. 12, 1932 slLVERMAN 1,841,159

, METHOD OF MAKING TEXTILE FABRICS Filed Dec. 15, 1930 I N V EN TOR.

LEO 51L VERMA IV A TTORNE Y.

Patented Jan. 12, 1932 UNITED STATES. PATENT OFFICE LEO SHIVERMAN, 0F ELKINS PARK, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO LEO SILVERMAN & 00., INC 01 PHILADELPHIA, PENNSYLVANIA, A COB- IPORATION OF PENNSYLVANIA .METHOD OF MAKING TEXTILE FABRICS Application filed December 15, 1930. Serial No. 502,448.

My invention relates to a new and useful method of maln'ng textile fabrics, whereby a certain new and highly desirable knitted millinery and trimming fabric is produced.

My invention relates more particularly to a novel method of forming a millinery and trimming fabric of wide sheets or webs of glycerinated regenerated cellulose, sometimes own commercially under the trade name of cellophane, whereby not only a .highl desirable resultant roduct may be obtaine but whereby also t e product may be produced with the least amount of damage or spoilage.

It is an object of my present invention produce a millinery and trimmin fabric having metallic lustre and earl-like and open texture, which will be su ciently pliant and resilient and yet permanent and durable, so as to be adaptable for millinery and trimming purposes, and which will possess a thickness of body dependent upon the width of the regenerated cellulose webs, and in which the width of webs is disposed transversely of the plane of the fabric, thereby producing at the same time, a relatively open texture.

With the above and other ob'ects in view, which will appear more fully om the following detailed description, my invention consists of a novel process or method, in-

' eluding a certain series and sequence of steps,

whereby a relatively wide web or sheet of relativel fragile regenerated cellulose may be trans ormed intoa uni ue and highly useful knitted millinery and trimming fabric, without incurringdamage to the regenerated cellulose or the resultant product.

My invention further consists of other novel features of method and product, which will appear more full hereinafter.

For the purpose of i ustrating my invention, I have shown in the accom anying drawings a form of apparatus whic is at present preferred by me In carrying out a part of the novel method comprising my invention, since the same has been found in practice to ive satisfactory and reliable results, althoug it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized, and that my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

Referring to the drawings in which like reference characters indicate like parts:

Figure 1 represents a diagrammatic side elevational view of the apparatus which may be used for subdividing the wide regenerated cellulose webbing into the narrower webbings for the subsequent steps of my method.

Figure 2 represents a diagrammatic plan view of the same.

Figure 3 represents a section on line 3-3 of Figure 1.

In carrying out my invention I utilize a web 1 of regenerated cellulose about .0007 to .003 of an inch thick and about an inch and a half to two inches wide, more or less a suitable length of which is arranged upon a suitable roll 2. The wide regenerated cellulose web 1 is passed throu h opposed and operatively aligned series 0 circular discs 3 and 4 which are revolved in o posite direc tions by any suitable means not shown). The discs 3 and 4 are arranged as indicated particularly in Figure 3, so that their contiguous edges shear or slit the web 1 alon suitably spaced parallel lines, thereby divi ing the web 1 into a corresponding series of narrower webs 5 of any desired width, ranging from one sixty-fourth to three sixtyfourths or a sixteenth of an inch. These narrow webs 5 are then taken'up individually upon suitable take-up spools-6, driven by any suitable means.

he regenerated cellulose web 1 is transparent, colorless or undyed as will be brought out more in detail hereinafter.

The narrow, colorless regenerated cellulose webs 5 are then rewound onto suitable bobbins (not shown), and while being thus rewound, (by any suitable winding means) they are coated with a film of suitable thin oil or an oily substance, such as glycerine, for the purpose of rendering the same more susceptible to the subsequent softening operatio The narrow regenerated cellulose webs thus finally wound on bobbins, are then formed into a textile fabric by knitting said webs in a moist or damp atmosphere, either singly or m multiple, over a set of knitting needles -(upon any suitable machine) continuously and in the same, direction, so that the tension on said regenerated cellulose web-or webs is not momentarily increased at intervals, as by a change of the direction of traverse of the thread carrier with respect to the needles. Thus, the regenerated cellulose webs are'knitted either singly or in multiple, over a circular knitting machine, into atu- I bular fabric, with the rate and direction of traverse maintained generally constant. The moisture is supplied preferably by blowing a fine spray of cold water into the atmosphere surrounding the knittin needles ;or if desired, the regenerated cellu ose webs may be passed through water or vapor preliminary to the knitting. The oily film or glycerine causes a greater retention of moisture by the regenerated cellulose web, and aids in softening the same.

The tubular fabric thus produced is referably taken up entirely by the wei t: of the fabric itself, without any additiona takeup means, whereby the fabric, and hence the loops upon the needles, are not subjected to any substantial tension, so that the formation of the loops of the'narrow regenerated cellulose webs is maintained free of all strain or tendency to crush or distort the loops, or to sharply bend said webs beyond the curvatures which the regenerated cellulose webs tend normally to assume b reason of the inherent resiliency of said we bing.

The raw tubular knitted fabric, thus produced, is then washed while in the tubular formation or condition, to remove the oily film on the regenerated cellulose .web, and

while still in the tubuIar formation or condition, the fabric is dyed to the desired color.

While still in the tubular formation or condition the dyed fabric is then dehydrated centrifugally or by other suitable means, to a point where it still contains a substantial percentage of moisture ;about 5%, more or less, and is then drawn onto a suitable form, upon which the fabric is stretched out. The fabric is allowed to dry in the air b normal evapo ration. Lastly the tubular ormation is cut openlongitudinally, so that a flat, single-ply finished web of fabric is produced.

l The fabric thus produced possesses a earllike and open texture and a metallic ustre,

and is capable of withstanding suflicient wear to make it highly useful for millinery and trim g purposes.

I am aware that the'invention may be embodied in other specific forms without de arting from the spirit or essential attri utes thereof, and I therefore desire the present embodiments to be considered in all respects as illustrative and not redrictive, reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

Having thus described my invention, what I hereby claim as new and desire to secure by Letters Patent, is:

1. The method of, making a millinery and trimming fabric which consists in slitting a long and relatively wide web of regenerated cellulose into long and relatively narrow webs of a width ranging from approximately one sixty-fourth of an inch to approximately one- I sixteenth of an inch, depending upon the 7 tion longitudinally to. form a finished, flat web of knitted fabric.

2. The method of making a millinery and trimming fabric which consists in cutting a long and relatively wide web of regenerated cellulose into correspondingly long, but relatively narrow webs of a width ranging from approximately one sixty-fourth of an inch to approximately one-sixteenth of an inch, depending upon the thickness desired in the resultant fabric, softening said relatively narrow webs, forming the same into a tubular textile fabric, by knittin said relatively narrowwebs over asset of itting needles continuously and in the same direction, and lastly cutting open said tubular formation longitudinally to form a finished, flat web of knitted fabric.

3. The method of making a millinery and trimmin fabric which consists in cutting a long an relatively wide web of regenerated cellulose into correspondingly long but relatively narrow webs of suitable width, depending upon the thickness desired in the result ant fabric; softening'said relatively narrow webs, forming the same into a tubular textile fabric, by knitting said relatively narrow webs over a set of knittin needles continuously and in the same d lrection with the width of said relatively narrow webs disposed generally transversely of the plane of the resultant fabric, thereafter dyeing said tubular knitted fabric and dehydrating the same, and cutting open said tubular formation longitudinally to form a finished, flat web of knitted fabric of open texture.

4. The method of making a millinery and trimming fabric which consists in cutting a long and relatively wide web ofregenerated.

cellulose into correspondingly long, but relatively narrow webs of suitable width, depending upon the thickness desired in the resultant fabric, softening said relatively narrow iao webs, forming the same into a tubular textile fabric, by knitting said relatively narrow tubular formation Ion itudinally to form a finished, flat web of knitted fabric.

5. The method of making a millinery and trimming fabric which consists in cutting a long and relatively wide web of regenerated cellulose into correspondingly long, but relativel' narrow webs of suitable width, depen ing upon the thickness desired in the resultant fabric, treating said relatively narrow webs with a softenlng reagent, forming said out webs into a tubular fabric, by knitting the same over a set of knitting needles generally continuously and inthe same direction with the width of said relativel narrow webs disposed generallytransverse y of the plane of the resultant fabric, and without any substantial tension on the resultant fabric issuing from said needles, thereafter dyeing said tubular knitted fabric and dehydrating the same, and lastly cutting open said tubular formation longitudinally to form a finished single web of the knitted fabric.

6. The method of making a millinery and trimming fabric which consists in cutting a long and relatively wide web of regenerated cellulose into correspondingly long, but relativcly narrow webs of suitable width, depending upon the thickness desired in the resultant fabric, treatin said relativel narrow webs with a softening reagent, inc uding an oily li uid and moisture, forming said cut and so tened webs into a tubular fabric, by knitting the same over a set of knitting needles generally continuously and in the same direction with the width of said relatively narrow webs disposed generally transversely of the plane of the resultant fabric, and without any substantial tension on the resultant fabric issuing from said needles,

thereafter dyeing said tubular knitted fabric and dehydrating the same, and lastly cutting open said tubular formation longitudinally to form a finished single web of the knitted fabric. 1

In testimony whereof I have hereunto set my hand and seal this 12th day of December, 7

LEO SILVERMAN.

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