A. OVER LOCK

It is a stitch produced by using one or more threads to enclose the raw edges of fabric ply or plies, over lock stitches are used to produce a seam finish for the edge to prevent fraying, raveling or rolling of the edge.

over-lock-image

B. COMBED YARNS

In staple fiber processing, combing is an optional process that can be used when high quality combed yarn production is required. Combing operation results in an improvement in yarn quality and enables spinner to spin finer count yarns than would be possible with carded yarn.

Objectives of combing process are:

  • To remove predetermined amount of short fiber.
  • To remove neps and impurities.
  • To improve degree of parallelization of the fiber inside the yarn.
Accordingly, produced combed yarns are more uniform, stronger, more lustrous, compact, less hairy and cleaner than carded yarn.

Combed yarn is made only of long fibers to give more:

Expensive high quality yarn since in combing operation as much as 25% of fiber (almost ¼ of raw cotton) may be eliminated in form of short fibers waste called noils. Since combed yarns have superior quality, they are used to produce stronger, smoother and more Serviceable cotton products which may carry special labels indicating they are made of combed Cotton yarns.

C. CARDED YARNS

In the processing sequence of carded yarn, combing operation is cancelled and cotton passes directly from Carding to drawing and ring spinning. Therefore carded yarn is cheaper in production but of inferior quality compared with combed yarn. Carded yarns contain higher percent of short fibers and their staple fibers are less parallel so yarn is weaker and more hairy which do not enable spinner to produce fine count yarns. Accordingly, carded yarns are used for producing inexpensive cotton fabric.

D. SELVAGES

 The lengthwise sides or edges of a fabric.  

E. TOG

An International measure for heat insulation capacity.

HOLLOW FIBERS

1. Hollow Fibers

Polyester hollow fiber has been introduced to the market recently on 1980, the cross section of this fiber has tubular form that contains one or more holes (similar to spaghetti Macaroni shape) it gives the following advantages over solid fiber:

  • More Resilience / Recovery.
  • More Bulky & Fluffy.
  • Higher Heat Insulation.
  • Better Cover. Lighter in Weight.
  • Higher Absorption of Water and Perspiration.

2. Solid Fiber

It is polyestter fiber with solid cross section and has no holes, this was the basic fibers row material used for filling of bedding products until hollow fiber was introduced to the market.

hollow-fibers

WRAP / WEFT

Woven fabric is constructed from the interlacing of yarns woven at right angles to each other, so as to Produce the structure of the woven fabric. The lengthwise yarns are called “warp” and the width wise yarns are called “weft”.