Blogger Widgets Blogger Widgets Home Contact About Submit Article Advertise Ask Forum [Follow me on Facebook!] [Follow me on Twitter!] [Follow me on Linkedin!] News Spinning Fabric Garment Wet Process Others Machines Flow Chart Ebooks Dictionary Translator Powered by Translate What is Textile? Textile is a very widely used term which includes... What is Textile Fiber? Textile fibers are the materials at natural or artificials... Textile Manufacturing Process Textile manufacturing is a complex process. It starts from fiber... Application of Dyes There are different types of dyes for dyeing textile goods. These dyes... Color Fastness Tests Color fastness means resistance to....... Undergarments or Underwear It is very important wear because of its functional and appearance beauty... Textile Calculation Calculate the length of a package of 80/1 and cone weight 2.083 lb... Protected by Copyscape Online Copyright Search 50% off selected silk panels. Sequence of Combing Operation Print Friendly and PDFPrintPrint Friendly and PDFPDF Sequence of Combing Operation Md. Rubel Miah Department of Textile engineering World University of Bangladesh Email: rubel099@gmail Combing Operation: The combing process is carried out in order to improve the quality of the sliver coming out of the card. The process eliminates short fibres, it achieves better parallelisation of fibres, it straightens curls, and it removes neps and residue impurities. It is clear from these functions that the combing process is essentially aimed at obtaining excellent quality yarns and to fulfill this objective raw materials with above average physical and mechanical features must be used from the very beginning of the spinning process. Objects: To remove fibres shorter tan a predetermined length so as to enable spinner to produce finer yarn than that can be spun from the same carded sliver. To remove neps and impurities. To produce uniform sliver of required wt/unit length. To make the fibre straight and parallel so that yarn become even and lustrous. Working Principle: 1. Lap feeding by feed roller: The feed roller(A) move the sheet/Lap (B) (4 to 6.5) forward while the nipper C/D are held open (feed). Fig: Lap feeding by feed roller 2. Lap nipping by nipper: The top nipper (C) is toward onto the bottom nipper(B). So that the fibre are clamped between them (nipper). Fig: Lap nipping by nipper 3. Combing by cylinder: The combing segment (E) mountain on rotating cylinder(F) aweaps its needle or show teeth through the fibre & carries away anything not held by nipper. Fig: Combing by cylinder 4. Nipper opening & forwarding: The nipper open again 7 move towards the detaching rollers(G). Fig: Nipper opening & forwarding 5. Detaching roller backward movement: Mean while the deatching roller (G) have returing part of the previous drawn off slock by moves of a revers rotation.so that the web produce as from the back of the detaching rollers. Fig: Detaching roller backward movement 6. Piccing of web: In the course of the forward movement of the nipper the projecting fibre is place upon the returned web. Fig: Piecing of web 7. Combimg by top comb: Before the short of the detaching operation, the top comb(H) has thrust its single raw of the needle into the fibre. As the fibre are pulled through the needle of the top comb(H) during detaching , the tailing part of the top combed.thus making up for the inablity of the cylinder combs to reach this part of the fibre & thus performs combing. Fig: Combing by top comb 8. Detaching roller forward movement: The detaching roller being to rotate in the forward direction again and deawn the clambed fiber out of the sheet held first by the feed rollers. Fig: Detaching roller forward movement 9. Prepartion for next combing cycle: As the nipper assumply is retracted, the nippers up for the next feeding step the top comb is withdrawn.As new combing cycle beings. Fig: Preparation for next combing cycle 10. Waste extraction by the brush: The combing cylinder rotates continuously and the combing segment is therefor attached with same imparites and short fibre. There are a rapidly brush (I) mounted bleow the combing cylinder.Thus the impurites & attached fibre. Fig: Waste extraction by the brush 9 0 0 0 0 14 About the Editor-in-Chief Im Md. Mazharul Islam Kiron from Mymensingh, Bangladesh. Professionally Im a Textile Engineer but I like to Textile Blogging, Web Developing and Search Engine Optimization (SEO). I also write English articles in Wikipedia. Find Me on LinkedIn @ Mazharul Islam Kiron Find Me on Facebook @ Mazharul Islam Kiron Email Me @ textilelearners@gmail Related Posts Widget for Blogger Related Posts Problems, Causes and Remedies of Combing Process Combing Cycle | Basic Principle of a Comber Lap Former Machine | Features of Lap Former Machine Process of Controlling Waste in Combing An Overview of Combing Process | Passage Diagram of Comber Machine 0 comments: Comment here Your feedback is always appreciated. If you have any question or opinion, you can give comment below. I will try to reply to your queries as soon as time allows. Note: Please do not spam. Search This Blog Categories to get free tutorials!!! Get our toolbar! Popular Posts Types of Bra | Different Types of Bra/Brassiere for Women Top Ten Textile Universities in the World Parts of a Sewing Machine and Their Functions | Different Parts of Hand Operated Sewing Machine Process Flow Chart of Garments Manufacturing | Sequence of Garments Production Process Textile Manufacturing Process | Process Flow Chart of Textile Manufacturing Free Download Latest Books on Technical Textile, Fiber, Spinning, Fabric, Weaving, Knitting, Garments, Fashion, Design, Dyeing, Printing and Finishing Textile Ebooks/Books Free Download for B.Sc. in Textile Engineering Students Find @ Facebook Youtube | Google Plus | LinkedIn | Twitter | Facebook | Contact and Advertise | RSS Feed | Privacy Policy | Sitemap Copyright [c] 2013 Textile Learner | All Rights Reserved ShareThis Copy and Paste Read more: textilelearner.blogspot/2013/07/sequence-of-combing-operation.html#ixzz2lST57ALq
Posted on: Sat, 23 Nov 2013 09:10:16 +0000