Tuesday, 3 January 2012

Difference between Rib, interlock and plain

Comparison among plain single jersey, plain rib and plain interlock fabric

Plain s/j fabric
Plain rib fabric
Plain interlock fabric
Face and back side are different
Face and back side are identical
Face and back side are same
2.visibility of Wales
Clearly visible on the face side
Face and back side are identical.
Wales of each side are exactly opposite to each other and locked together
Widthwise extensibility is twice than lengthwise extensibility
Width and lengthwise extensibility is twice than single jersey
Elongation is same as single jersey                                           
4.curling tendency
Curling occurs at the edges
No curling tendency
No curling tendency
Approximately  twice of yarn diameter
Approximately twice than single jersey
twice than single jersey
7.series of loops
One series of knitted loop for per course
Two series of loops
Two series of loops
8. Derivatives
Single lacoste ,Double lacoste.,Single pique,Polo pique/Double pique,Two thread fleece,Three thread fleece,French terry etc.
2×2 rib,Half cardigan or royal rib,Full cardigan or polka rib,Swiss double pique,French double pique
Single pique or cross tucks interlock,Jersey cord.Eight lock.

Comparison between RIB and INTERLOCK circular knitting machine:

1.Rib has vertical cord appearance
1.it has the technical face of plain fabrics on both sides
2.one type of latch needle is used
2.two types of latch needle is used.
3.one feeder is used at yarn feeding
3.at least two feeders are used
4.relaxation is less
4.more relaxation
5.Dial and cylinder needles are opposite but placed in same sequence.
5. Dial and cylinder needles are opposite and alternatively placed
6.it is not so thick and heavy structure
6. it is so thick and heavy structure
More production rate
7. less production rate
8.used to produce tops of socks, cuffs ,sleeves ,bottom edges of sweaters ,knit hats, means hosiery
8.used to produce underwear, shirts, suits, trousers suits, sports wear, dress

Monday, 19 September 2011

Corn fiber as a raw material for hemicellulose and ethanol production

Corn fiber (CF) is a potential raw material for the production of various products because it is widely available in corn-producing countries. Corn fiber is a byproduct of the corn wet-milling industry and a very large amount of it (approximately 130 t/day) is produced in Hungary. The major component of corn fiber is the pericarp that consists of 35% hemicellulose, 18% cellulose and 20% remaining starch (protein, fiber oil and lignin are also present in this material). Corn fiber is presently used as animal feed. However, with continuous growth in corn processing to ethanol, there might be problems with the utilization of the surplus fibrous byproducts. In this paper the conversion of corn fiber to ethanol or other products was examined. Destarched corn fiber was pretreated by using different alkaline solutions and dissolved hemicellulose was precipitated with ethanol for the recovery of a valuable coproduct. The residual material consisting mostly of cellulose was hydrolyzed with cellulolytic enzymes and fermented into ethanol by using Saccharomyces cerevisiae.

FROM:ScienceDirct Biochemistry website

Banana Fiber

In 2007, LIFEI have developed this new type of natural textile fibres.Banana fibers such as flax, jute, hemp, and pineapple etc plant fibers. are all made up of thick walled cell tissue and they are bonded together by natural gums and support the branches, stems, leaves and fruits. Although banana plants and fibers are available in tropical regions in abundance, their application potential has not been exploited fully. At present,other companys make the limited application of banana fiber ,for example, in making ropes, mats, and some other fields such as the composite materials. In recent years, more and more plant fibers were considered to be "environmentally friendly" fiberesources , and many countries are emphasizing the utilizing of these fibers.

Sunday, 18 September 2011

Garmants Inspection

1. Confirmation of Quantity:
First step of inspection start with confirmation of  Quantity with the vendors  packing list by counting all Pecs. Of each box. If Qty is not matching to the packing list and written in the box then this discrepancy is informed to the vendor.

2. Confirmation of accessories:   Next step is the confirmation of accessories, here we confirm brand tags, demerit tags, Price tags, or other tags, wash care labels, woven labels, or other labels and accessories as required by the buyer.

3. Size spec inspection :  After confirmation of accessories all pcs are checked as per size spec based on the instruction sheet which is given by the buyer side. If  any measurement problem is noticed then we check the original sample and inform the buyer same time.

4. In side Inspection :  At this stage garment is checked  from reverse side to ensure that there is no fabric defect, poor stitching, and stains etc in the garment.

5. Out side Inspection:  At this stage garment is checked  from  outside to ensure that there is no  color variation, weaving defect, fabric defect, printing defect, holes, poor stitching, bad smell , dying defect and stains etc in the garment.

6. Final Inspection:  Final Inspection stage is the most important part of inspection process, here garment is rechecked to confirm that inspection is done properly without missing any checking step if any defect is noticed  we  put it into  rejection bin or send it for repay. 

7. Packing:   All “Grade-A” goods are put back into  poly bags as per the original packaging  and then they are send for needle inspection .

So, depending on the quality of defect some garments are send for repair and some are rejected.