US1825071A - Fabric of crepe thread and process of making same - Google Patents

Description

Se t. 29, 1931. B. KAYSER 1,825,071

FABRIC OF CREPE THREAD AND PROCESS OF MAKING SAME Filed May 51, 1950 Inventor A ttor neya Brzzzm [(27 521:

Patented Sept. 29, 1931 BRUNO KAYSER, OF READING, PENNSYLVANIA FABRIGOF CREPE THREAD AND PROCESS OF MAKING SAME Application filed May 31,

My invention relates to textile fabrics formed of an improved crepe thread or yarn, and to the process of manufacturing thelatter, my primary object being to produce a crepe fabric that will be free from any distorting twist due to the action of the thread or yarn.

Crepe thread as made heretofore consisted of a number of strands of raw fibres tightly in twisted together to form a thread or yarn, such twist being either in a right-hand or left-hand direction, and the action of such thread when employed to produce textile fabrics being to cause a distorting twist which at best was undesirable and often so unsatisfactory as to be unusable. This distorting and twisting action caused by such tightly twisted thread has been so pronounced in knitted goods as to practically prohibit its use for such purpose; and even in woven goods it has been unsatisfactory and to avoid its harmful action the common practice has been to employ right twisted and left twisted thread wefts in alternaatition, by the use of two bobbins and special machine structure to actuate them successively.

My improved crepe thread or yarn is av combination of reversely twisted strands so united by a light twisting together, the

twisting action of the component strands being neutralized so as to form a single thread that is freely workable without snarling or knotting and that may be employed in usual manner in known knitting or weaving machines and will produce a crepe fabric of improved appearance which will lie true and straight due to the absence of any twist distortion heretofore inherent in such threads or yarns.

With the above objects outlined and with other advantages that will later herein appear, my invention consists of the novel crepe thread and the-manner of making the same, and of the improved fabric produced therefrom, as will now be fully described in connection with the accompanying drawings, the novel features thereof being'specifically set forth in the appended claims.

' Fig. 1 indicates a woven fabric formed of 1930. Serial No. 458,276.

my improved crepe thread, a portion thereof being indicated as greatly enlarged to show the separate threads.

, Fig. 2 indicates a stocking knitted of my improved crepe thread, an enlarged portion indicating the fabric loops.

Fig. 3 is a greatly enlarged showing of my improved crepe thread, the component parts thereof at one end being separated to show its formation. v

The manufacture of thread or yarn is an old art and com rises the uniting of varying number of raw fibres and strands with differing degrees of twisting in accordance with the requirements. The degrees of twisting varying from a few turns to the inch up to a tight twist of many turns, and such threads as have approximately sixty turns more or less being ordinarily known as crepe thread.

Crepe thread as commonly known heretofore was made up of a number of strands of raw fibres tightly twisted together to form a thread; this twisting being either right or left hand, and the finished thread having a desired hardness and strength, but being diflicult to work and liable to snarl and knot and having a marked tendency to distort the fabric and prevent its lyin flat. For weaving purposes this was large y overcome by the use of ri ht twist and left twist threads used as :flternating wefts, but no such alternation was possible in knitting operaisions'and its use was practically prohibite My improved crepe thread is so manufactured as to eliminate all such twisting, snarling and knotting, and will work freely in any machine and produce an unstralned flat fabric of superior appearance and strength.

In Fig. 3 I have indicated a crepe thread embodying my invention, 5, 5 representing raw fibres, which preferably are of sllk and each consisting of a number of cocoon filaments as usual. A number of such fibres 5, 5, are united by a usual throwmg or twisting operation to form a strand, two such strands 6 and 7 being shown, one, 6, having a right-hand twist, and the other, 7, a left-hand twist, and such twists being approximately the same and about fifty turns to the inch. The two strands, as shown, are then united to form a single crepe thread or yarn, 8, by twisting them together, such uniting twist being either right-hand or left-hand and a light twist of about five. or six turns to the inch, 'the drawing showing a right-hand twist for this purpose. The thread 8, as shown, thus combines two reversely ti htly twisted strands having a light combining twist, and the result of such combined elements is to neutralize the inherent twist-distorting action of the separate strands maln ng a new crepe thread free of all distorting twist, readily workable for any fabric purpose, and with an absence of any tendency to snarl or knot, yet embodying all the desirable qualities and appearance of a usual crepe thread. To insure such freely workable thread, I preferably give to one strand a few more twists per inch, say about five as indicated by the closer lines on strand 7, and make the uniting twist in a direction reverse to the twist of such more tightly twisted strand, the result more nearly equalizing and neutralizing the distorting action of the component,- strands.

The thread 8 thus produced is subjected to the usual treatment heretofore commonly employed to fix or set the twists and finish the thread ready for the market.

The essential requirement of my improved thread as above fully set forth in connection with the showing in the drawings, is

that it shall consist of reversely twisted strands which are so combined as to neutralize their individual harmful distorting twists. The drawings show but two strands, 6 and/T, but for certain purposes it may be desirable to employ additional ones,

and of course the number of raw fibres in the several strands will be determined, as heretofore, by the particular requirements of use and weight desired.

My improved crepe thread or yarn, being free working and without tendency to snarl or knot and the distorting twist of its several strands neutralized, readily lends itself to any usual fabrication. In Fig. 1 I have indicated a flat woven fabric, the enlarged portion thereof indicating the series of warp threads 10 with the wefts. 11 engaged in known manner in every crossing of the warps; my improved thread or yarn being.

equally applicable for both warps and weft and the fabric thus woven being free of all distort and strain caused by the thread, will lie at and even without tendency to twlst, thus proved appearance and quality. Fig. 2 indicated a knitted stocking, the enlarged port on thereof showing a usual loop formatlon; my improved crepe thread equally well adapted for such knitting op eration as its free workability and absence of snarling and knotting, permits the necesp cing a crepe fabric of imsary bending and looping action of the needles, and its neutralized tendency to twist avoids the heretofore prohibitive crepe thread distortion in knitted fabrics, and produces an improved flat lying unstrained knitted stocking of enhanced appearance and strength.

With my improved crepe thread or yarn, as above fully set forth, it will be seen that its application to any fabrication may be accomplished as freely as less tightly twisted thread and yarn heretofore employed, and that its absence of distorting twist permits its use in greater varieties of fabrics and with enhanced value to them because of its desirable crepe appearance and strength and avoidance of the harmful action of such thread as heretofore manufactured.

It is believed the nature and advantages of my improvements will be readily understood, and it will be apparent that modifications of the specific structure shown and described may be readily devised that are within the scope of my invention as defined in the following claims.

What I claim is:

1. As a new article ofmanufacture, a tex tile fabric formed of crepe thread which is made up of two tightly twisted strands of multi-fibres, tightly twisted and in a direction reverse to the other strand, and said two strands being combined into a single thread by a light twisting together in a direction reverse to said more tightly twisted strand so as to neutralize the twist-distorting action of the several strands in the textile fabric formed thereof.

2. A crepe thread made up of a strand of tightly twisted multi-fibres and a strand of slightly tighter reversely twisted multifibres said strands being combined by a loose twisting together in a direction reverse to said tighter twisted strand whereby a single thread is formed free of the twist-distorting action of the several strands.

In testimony whereof I aflix my signature.

BRUNO KAYSER.

9 one of said strands being more 5

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