Combing Machine

A combing machine segregates short fibers, parallelizes fibers, and removes small trash particles and dust. 

The web rolled off from the lap (1) is pinched between the lower (4) and the upper clamp (5). The circular comber covered with combing segments (7) combs out the fiber beard that is protruding from the clamps. The short fibers that are now sticking in the circular comber are removed from the combing segments with a brush (8). 

After the combing action, the upper clamp rotates upwards. The clamps are now open. Upper and lower clamps swing around the pivotal point of the clamps (6) toward the detaching rollers (10). The detaching rollers grab the fiber beard and attach it to the previously combed fibers as a continuous fiber web. This action is 

After soldering, the top comb (9) moves down into the fiber beard so that the detaching rollers do not pull out the web from the clamps during the detachment. With the transporting movement of the detaching rollers, the web is separated this is called detachment. The detachment is supported by the clamps swinging backwards. 

Prior to the next combing sequence, the delivery rollers (12) transport the web forward through the open clamps at an adjustable feed rate. On closing of the clamps, the next combing sequence starts. 

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If long-fibre cellulose is to be used as a nitration material then noils from combing machines or waste from a spinning mill are usually used. Such wastes are usually contaminated with lubricating oils and before the chemical treatment they should be... 

Sliver An untwisted strand or rope of textile fiber produced by a carding or combing machine and ready for drawing, roving, or spinning. 

Figure 3.12 shows a cross section of the basic working elements of a combing machine. Modern cotton combing machines work intermittently with moving clamps. 

Figure 3.12 Working elements of the combing machine (Olbrich et al, 1994)...

The next processing steps are carding and drawing. The doubled and attenuated sliver is processed into a combed top at the combing machine. The combing principle is the same as for cotton fibers explained in Section 3.1.2. The combing machines are substantially different because of the very different raw materials (crimp). To even out the soldering joints, the combed top is drawn with an autoleveller draw frame. 

Melville, J. L., Burke, E. K, Hirst, J. D. (2009) Machine learning in virtual screening. Comb Chem High Throughput Screening 12, 332-343. 

J.E. Elsworth, W.W. Haskell and I.A. Read, Non-Uniform Ignition Processes in Rapid Compression Machines, Comb, and Flame 13 (1969) 437. 

Mazzatorta P, Cronin MTD, Benfenati E. A QSAR study of avian oral toxicity using support vector machines and genetic algorithms. QSAR Comb Sci 2006 25 616-28. 

Kriegl JM, Arnhold T, Beck B, Fox T. Prediction of human cytochrome P450 inhibition using support vector machines. QSAR Comb Sci 2005 24 491-502. 

Since knitting yams are unsized and usually combed to reduce seed and trash content , there is normally any need for treatment prior to bleaching. The knitting lubricants which replace the size on woven fabrics are usually self scouring, but sometimes from their very volume may create problems with foam and stains in wet processing or in the knitting machine which need to be treated with solvent containing auxiliaries. 

Modern roller screens feature a horizontal deck. Fig. 11.30a depicts the principle of such a machine. Each of the rollers is still individually driven, as shown in the photograph (Fig. 11.30b), but the movement of the material is caused by intermeshing triangular lobes (discs) which, at the same time, loosen up the bed to free the fines which drop through the gaps. Since the materials are often tacky, scrapers, which in their entirety resemble combs, clean the screen openings. 

Vert, J. P. and Jacob, L. 2008. Machine learning for in silica virtual screening and chemical genomics New strategies. Comb. Chem. High Throughput Screen. 11 677-685. 

Cellulose acetate (CA), cellulose acetobutyrate (CAB) cellulose propionate (CP), Thermoplastics manufactured from cellulose by esterification with acetic acid (CA), acetic acid and butyric acid (CAB), or propionic acid (CP). Their products are characterized by high impact strength, transparency (without filler), and oil resistance. Examples of applications consumer goods, toys, combs, keys for music instruments and business machines, spectacle frames, photographic films. CA fibres are used for underwear, neckties, etc. Trade names Cellidor (FRG), Setilithe (B), Tenite (USA). 

Mahe P, Vert J-P. Virtual screening with support vector machines and structure kernels. Comb Chem HTS 2009 12 409-423. 

Loading should be carried out in a screw-driven tensile testing machine with the crosshead speed set to 25 mm (1 in.) min and at least 152 mm (6 in.) of the skin/honey-comb bond should be peeled. The machine should have a chart recorder so that the peeling... 

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