Textiles: knitting – Fabrics or articles – Incorporated unknitted materials
Reexamination Certificate
2003-08-19
2004-11-30
Worrell, Danny (Department: 3765)
Textiles: knitting
Fabrics or articles
Incorporated unknitted materials
Reexamination Certificate
active
06823700
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention is related to providing a pile yarn processed warp knit fabric comprising a plurality of unified warp knit fabrics divided by wale oriented cutting portions and course oriented cutting portions.
The pile yarn processed warp knit fabric comprises a plurality of unified warp knit fabrics, wale oriented cutting portions, in which a single weft yarn connects opposite grouped wales in neighboring unified warp knit fabrics to each another widthwise in a staggered form, and course oriented cutting portions, in which single weft yarn and single pile yarn extended from the unified warp knit fabric are inserted in wales adjacent the unified warp knit fabrics in a staggered form.
Generally, a knitted warp fabric is manufactured by the connection of loops to each another. It has many advantages in that the knitted warp fabric has the good sense of the touch, the good elasticity, no wrinkles, and good heat insulation by the entrapping of air and the good permeability. But, it has disadvantages in that the loops of the cutting portion are easily loosed, the knitted warp fabric is easily changed in its original form and the cut portion is necessarily sewed with much carefulness.
In other words, the knitted warp fabric must be cut in a predetermined size without processing edges for its use and then stitched using an overlock machine, but it is difficult to keep the original form of a knitted warp fabric in spite of being overlock-stitched. In a bad case, the knitted warp fabric may be changed not to come back to its original form.
In order to resolve these problems, a typical technology is disclosed in Korean Patent No. 270,234 entitled “a method of finishing knitted cleaner and knitted cleaner therefrom”. The knitted cleaner processed with upper and lower loops include warpers put on edges to each another. The warpers are covered with overlock stitches to be held to the knitted cleaner. It prevents the separation of the knitting edges to maintain the original form of knitting. But, the patent needs separate warpers and overlock stitches which additional processing procedures are required following by the rising of the manufacturing cost.
Another Korean Patent No. 301,311 is related to a process for preparing a warp knit fabric having the effect of a crepe, which comprises steps of preparing raw yarns used for gray fabric of fibers, warping a plurality of raw yarns on one beam, weaving a plurality of raw yarns wound by the warping process and dyeing the obtained gray fabric. The process further includes a sewing process for sewing end parts of the raw gray to prevent the end parts of a weave fabric from being rolled up and a dyeing process. But, the sewing process is very troublesome in works and the end parts of the weave fabric are easily changed. The additional procedures accompany the increased manufacturing cost.
Another Korean Examined Publication No. 1984-1345 corresponding to EP37628B1 discloses a production of knitted garments, in which a succession of integrally-joined blanks each has an integral welt or selvedge separable from the next blank by a draw thread at one end thereof. After knitting, the blanks are flattened, pre-shrunk and separated in a single steam-soluble draw thread operation. An end of the welt is shaped to form two superposed identical portions. There is no need for a separate hemming operation and the make-up. But, the patent must be processed to have the welt or selvedge following by the rising of the manufacturing cost due to additional welt forming procedures.
An object of the invention is to provide a pile yarn processed warp knit fabric divided into a plurality of unified warp knit fabrics by wale oriented cutting portions and course oriented cutting portions.
SUMMARY OF THE INVENTION
In order to resolve these and those problems, according to the invention, a pile yarn processed warp knit fabric comprises a unified warp knit fabric including a group of wales grouped in a predetermined number, in which weft yarns are inlaid in grouped wales in a wale direction to form a loop turning around the connecting portions between wales in an alternative arrangement with some weft yarns being superposed upon each another, and pile yarns are inserted in grouped wales to intersect the connecting points between the wales in a staggered form; a plurality of wale oriented cutting portions, in which a single weft yarn connects opposite grouped wales in neighboring unified warp knit fabrics to each another widthwise in a staggered form; and course oriented cutting portions, in which single weft yarn and single pile yarn extended from the unified warp knit fabric are inserted in wales adjacent the unified warp knit fabrics in a staggered form. Therefore, a pile yarn processed warp knit fabric is divided into a plurality of unified warp knit fabrics by wale oriented cutting portions and course oriented cutting portions.
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patent: 6401498 (2002-06-01), Fujiwara
patent: 6453705 (2002-09-01), Fujiwara
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patent: 1020000270234 (2000-07-01), None
patent: 1020010012028 (2001-02-01), None
Fleshner & Kim LLP
Worrell Danny
Yi Kang Moon
LandOfFree
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