US2123261A

US2123261A - Textile yarn

Info

Publication number: US2123261A
Application number: US117146A
Authority: US
Inventors: Taylor Matthew Michael; Fulton Stephen Miller
Original assignee: Celanese Corp
Current assignee: Celanese Corp
Priority date: 1932-02-05
Filing date: 1936-12-22
Publication date: 1938-07-12
Anticipated expiration: 1955-07-12

Description

Patented July 12, 1938 UNITED STATES PATENT OFFICE TEXTILE YARN tion of Delaware No Drawing.

Application December 22, 1936, Se-

rial No. 117,146. In Great Britain February Claims.

This application relates to composite yarns containing yarn having a basis of continuous filaments but having the appearance of spun yarn, i. e. of yarn made from staple fibre, and fabrics made therefrom. The application is in part a continuation of our co-pending application S. No. 746,258 filed 29th September, 1934, now Patent No. 2,077,4 i1, which is in part a continuation of our application S. No. 712,120 filed th February, 1934, itself acontinuation-in-part of our application S. No. 652,780, filed 21st January, 1933, now Patent No. 1,959,142 issued 15th May, 1934.

According to the invention yarns are made by twisting or doubling a plurality of individual strands or yarns at least one of which is composed of short lengths of fibrous material and at least one other of which is an imitation spun yarn or stapilized yarn, and the invention includes fabrics made from these mixed yarns.

Throughout the specification and claims the term "regular yarn is used to mean yarn formed by associating a plurality of substantially continuous filaments, and the term spun yarn is used to mean yarn formed by spinning relatively short lengths of filaments or fibres. The stapilized yarn employed in making yarns according to the invention is formed by any suitable method from regular yarns by cutting, breaking or tearing operations so carried out that at any point in its length one or more of the filaments in the bundle of filaments constituting the yarn are severed and one or more of the filaments in the bundle remain unsevered and the continuity of the bundle as a whole is not affected. For example the methods described in U. S. Patents Nos. 1,956,600, 1,959,142, 2,031,647, 2,044,130 and 2,046,615 maybe employed or the stapilized yarns may be formed by the methods described in U. S. Patents Nos. 2,098,980, 2,096,795, 2,098,-

981 and 2,077,283.

The stapilized yarn may be formed from any desired, regular yarn, for example, yarn of cellulose acetate or other organic derivative of cellulose, e. g. other cellulose esters such as cellulose formate, propionate and butyrate and cellulose ethers such as methyl cellulose,ethy1 cellulose and benzyl cellulose; yarn of wholly or partially and uniformly or intermittently saponified organic esters of cellulose; yarn of regenerated or reconstituted cellulose such as viscose, nitrocellulose or cuprammonium artificial silk; natural silk yarns; and yarns consisting of a mixture of any two or more of these types, according to the effect desired in the mixed yarn. The stapilized yarn ay be, for example, lustrous, weighted and/or pigmented. The number of filaments employed in theformation of the stapilized yarn may be from 10-200 or more and the denier of the yarns may be, for example, from 75-300 with any desirercli degree of twist from 3-20 or more turns per mc The spun yarns may be formed by any suitable method of spinning staple length fibres, e. g. by the worsted method, the woollen method, the French method or the cotton method. Fibres which constitute these yarns may be, for example, cotton or wool fibres. or artificial fibres, e. g. cellulose acetate staple fibre. and preferably are wool fibres having a staple length between 2 and 8 inches of a grade between 54s and 72's. If desired staple length fibres of cellulose acetate or other organic derivatives of cellulose may be mixed with wool or cotton to form the spun yarn. The spun yarns may be of any suitable size and of any desired degree of twist, although it is gen.- erally preferable to employ spun yarns having a count of 20-60 with a twist of 1120 turns per inch.

With the stapilized and spun yarns-there may be associated regular yarns, which may, for example, be formed by associating from 3 or 10 to 100 or 200 or more continuous filaments of the nature of those used in the regular yarns de-- scribed above in connection with the formation of the stapilized yarns. The constituent filaments of these regular yarns may be associated with substantially no twist or with a twist of up to 50 or more turns per inch.

The composite yarn may be formed by twisting or doubling together stapilized yarns and spun yarns in any desired ratio; for example, one spun yarn may be twisted with one stapilized yarn or with 2, 3, 4 or more stapilized yarns.

The composite yarns may be formed from the several constituent yarns by twisting to an extent of, for example, 3-15 turns per inch. The twist imparted in the twisting or doubling operation may be in the same direction or in the opposite direction to the twist of the yarns forming the individual components. Furthermore, spun yarn having a right-hand twist may be doubled with stapilized yarn having a left-hand twist, the two components being twisted together with either a left or right-hand twist.

The composite yarns made as described above may be woven, knitted, knotted or netted into fabrics. These fabrics are wool-like in appearance and possess characteristics which render them particularly well suited for mens summer and winter suits and for women's light and heavy- Attractive fabrics may be woven from the composite yarns of the invention, for example, in plain 1:1 weave or in patterns, herring bones, basket weaves and the like. The fabric may contain any desired number of warp ends or picks. Thus, for example, fabric may be woven in a plain 1:1 weave having from 35-45 warp ends and from 30-45 picks.

After formation the fabric may be finished and dyed in the usual manner. over, that fabrics containing thecomposite yarns of the invention are exceptionally well suited to napping operations by brushing the surface of the formed fabric. The fabrics are also noteworthy for their good draping powers, especially when containing regular yarns of organic derivatives of cellulose in addition to the spun yarns and stapilized yarns of organic derivatives of cellu1ose. I

The following example illustrates the invention but is not to be regarded as limiting it in any way:- I

Example A composite yarn is formed by twisting together with 8 turns right-hand twist, 3 ends of a 170 denier pigmented stapilized yarn having a twist of turns right-hand, and a spun worsted- -woolen yarn having a count of 40 and a twist of 14 right-hand turns per inch. The' resulting composite yarn is woven into a fabric with a plain 1:1 weave having 42 warp ends and 34 picks.

Having described our invention, what we desire to secure by Letters Patent is:-

1.,A composite yarn containing at least one spun yarn and at least one stapilized yarn.

2. A composite yarn containing at least one spun yarn of wool fibres and at least one stapilized yarn containing an organic derivative of cellulose.

3. A composite yarn containing at least one spun yarn of wool fibres and at least one stapilized yarn'containing cellulose acetate.

4. A composite yarn containing at least one spun yam of wool fibres of 18-60 count and having a twist of 11-20 turns per inch, and at least one stapilized yarn containing an organic derivative of cellulose. I

5. A composite yarn containing at least one spun yarn of wool fibres of 18-60 count and having a twist ofl1-20 turns per inch, and at least one stapilized yarn containing an organic derivative of cellulose and of denier between 75 and 200 with a twist of 3-20 turns per inch.

It is found, more- 6. A composite yarn containing at least one spun yarn of wool fibres of 18-60 count and having a twist of 11-20 turns per inch, and at least one stapilized yarn containing an organic derivative of cellulose and of denier between 75 and 200 with a twist of 3-20 turns per inch, the constituent yarns being twisted together at 3-15 turns per inch.

7. A composite yarn containing at least one spun yarn of wool fibres of 18-60 count and having a twist of 11-20 turns per inch, and at least one stapilized yarn containing an organic derivative of cellulose and of denier between 75 and 200 with a twist of 3-20 turns per inch in the same direction as the twist of the spun yarn.

8. A composite yarn containing at least one spun yarn of wool fibres of 18-60 count and having a twist of 11-20 turns per inch, and at least one stapilized yarn containing an organic derivative of cellulose and of denier between 75 and 200 with a twist of'3-20 turns per inch in the same direction as the twist of the spun yarn, the constituent yarnsfbeing twisted together at 3-15 turns per inch in the same direction as the spun yarn.

' 9. A composite yarn containing at least one.

spun yarn of wool fibres and at least three stapilized yarns containing an organic derivative of cellulose.

10. A composite yarn containing at least one spun yarn of wool fibres of 18-60 count and having a twist of 11-20 turns per inch, and at least three stapilized yarns containing an organic derivative of cellulose and of denier between 75 and 200 with a twist of 3-20 turns per inch in the same direction as the twist of the spun yarn.

11. A composite yarn containing at least one spun yarn, at least one stapilized yarn, and at least one regular yarn. I

12. A composite yarn containing at least one spun yarn of wool fibres, at least one stapilized yarn containing an organic derivative of cellulose, and at least one regular yarn containing an organic derivative of cellulose.

13. A fabric containing a composite yarn, said composite yarn containing at least one spun yarn and at least one stapilized yarn.

14. A fabric containing a composite yam, said composite yarn containing at least one spun yarn of wool fibres and at least one stapilized yarn containing an organic derivative of cellulose.

15. A fabric containing a composite yarn, said composite yarn containing at least one spun yarn, at least one stapilized yarn, and at least one regular yarn.

MA'I'I'HEW MICHAEL TAYLOR. STEPHEN MILIER. FULTON.