Carding action: If two close surfaces have opposite wire direction & their speed direction or relative motion also is opposite, then the action between two surfaces is known as carding action. Carding action is occurred between flat & cylinder. Here pin direction & rotational direction both are opposite. Result by the action of carding: Maximum …
Continue reading What is Carding Action | What is Doffing Action | What is Stripping ActionDecember 2012
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Technological points in carding: There are two types of feeding to the cards- Feeding material in the form of scutcher lap Flock feed system (flocks are transported pneumatically) Lap feeding Linear density of the lap is very good and it is easier to maintain (uniformity) the whole installation is very flexible deviations in card output …
Continue reading Feeding System in CardingCarding is defined as the reduction of entangled mass of fibres to a filmly web by working them between two closely spaced relatively moving surface cloth with sharp points. It is a primary process in spun yarn technology just after blow room. “Card is the heart of the spinning mill” and “Well carded is half …
Continue reading Carding in Textile – It’s Objective & Function
At the very beginning of the production process we need to make a polymer solution which we get from melting the polymer chips. Then this solution is poured into a big chemical vessel. There is a spinneret which is adjoined at the bottom of the vessel and the spinneret consists of a lot of small …
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Ginning: The process of separating the seed from the cotton fibre is called ginning. The ideal ginning is the separation without any damage of the fibre. Ginning is the first mechanical process involved in processing cotton. Ginning mill separates cotton fibers from the seed bolls and dust particles. The main application of ginned cotton referred …
Continue reading Cotton Ginning-Definition, Process & TechnologyThere are two numarical color specification system, CIE xyz system CIE uniform 3D color space or CIEÂ L*a*b color space (Mostly used) #Â Draw back of xyz system :Â They can not interpret hue, chroma and lightness. The tristimulus values do not represent co-ordinates in 3 dimensional color space A numerical value for the perceived …
Continue reading Numerical Color Specification systemFabric Grain line: Fabric grain or grain line refers to the orientation of the yarns in woven fabric. The warp yarns run from back to front in the weaving loom and form the lengthwise grain—often called the straight grain. The weft yarns are woven from side to side into the warp yarns and form the …
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Color :Â Modern concept of color was founded in 1774 by Isaac Newton. Newton separated white day light in to a sequence of colored light call spectrum ( VIBGYOR ). According to the committee of colorimetry of the optical society of America. Color is the sensation which occurs when light enters the eyes. It is …
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Ø   Defect: Colors are not fast to washing, Abrasion; Staining in the fabric when transporting from place to the other, water marks on the fabric ü   Remedy: Wash the fabric with soap and soda ash at right temperature. Adding sequestering agent will yield good results. Treating with Ammonia will also give good results. Ø   Defects …
Continue reading Defects in Dyeing with Reactive Dyes