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Sunday, 27 December 2009
Micro spinning or How to produce yarn at 40% cheaper than the conventional ring frame
As per the Site of Ministry of Rural Development “This technology is developed by Vortex pertains to the stages preparatory to spinning (pre-spinning). This can be coupled with a conventional spinning frame to produce yarn economically at a scale that is 1/100th of the prevailing scale. The technology integrates the operation of seed-removal (Ginning) with in-situ handling of fibres to produce slivers.”
Microspinning is a process of spinning in which small quantities of yarn can be produced. This is unlike in case of a standard spinning mill where large quantities of yarn need to be produced in order to be viable. In a spinning mill, the use of bales is the major cause of producing large quantities. It is also seen that pre spinning process is the major factor in making the textile mills bigger in size.
Micro spinning process eliminate the use of bales and convert directly cotton picked from fields to slivers. Thus it does away with the process of first converting the fibers into bales and then make it into uncompressed state. It will thus make possible for a spinner to produce as low as 30 tonnes per year of a medium quality of yarn (33s count) and therefore spinning can be brought in line with other small scale processes which can be done in small quantities such as dyeing and weaving. Weaver will get more returns ( about 20%) as a result of inhouse spindles (minimum 8 spindles onwards) the cost of setting up also reduces drastically.
Each microspinning unit from cotton to yarn will cost about 10 lakh rupees and therefore is an excellent investment for a small size entrepreneur. Total power requirement for a 24 spindle unit producing 3kg hank yarn per eight hours is less than 2 KW which is excellent for a power starved country like India. It required as area as low as 500 sq feet and can be installed in the field itself. As far as profitability of the unit is concerned, it is claimed that even at 40% capacity utilization, the profitability of a micro spinning unit will be seven times greater than the average spinning mill.
The possible issue here is the quality of yarn produced by microspinning unit as compared to the mill spinning. But I guess it would be ideal for low speed powerlooms and handlooms and will serve its purpose excellently.
Any success Stories ? Yes, there are many. According to website of Society of Elimination of Rural Poverty “The first unit has been running successfully in Chirala in Andhra Pradesh for the last 6 years and the cloth produced through this process is called “Malkha” cloth. Chirala unit has attained viability and sustainability and is being developed as a resource center for micro spinning and it is producing 1500 meters cloth per month and expected to increase to 1800 meters per month by April 2009”.
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Saturday, 19 December 2009
Direct TV
DirectTV provides television and audio services to subscribers through satellite transmissions. The Services are equivalent to that of many local television services, broadcast television networks, subscription television services, satellite audio and private video services. Subscribers have access to dozens or hundreds of channels.
Small reception antennas are used to accept the services.
Consumers who purchased DirecTV equipment subscribe to various packages of Direct TV programming for which the subscriber pays a monthly fee. A subscriber also can order pay-per-view events and movies. DirecTV contracts with and pays program providers such as cable networks, motion picture distributors, sports leagues, event promoters, and other programming rights holders, for the right to distribute their programming to its subscribers.
All programming distributed by Directv is delivered to its broadcast centers in California, where it is then digitized and compressed. The resulting signal is encrypted, or electronically scrambled, by DirecTV to prevent its unauthorized reception. DirecTV then transmits these signals to several satellites located in stationary orbit approximately 22,300 miles above the equator from where these were directed to individual customer’s antenna.
Tuesday, 15 December 2009
Ringframe Productivity
Cotton Yarn prices are sky-rocketing, thanks to the failure of crops in China and India and rising export demands in developing countries. It is but obvious, that the companies dealing in yarn are making or expected to make huge profits in the coming quarter. The profitability is going to be even more for the composite textile mills where value addition is more. All this is leading to rise in the stock prices of Textile Companies in India and I am sure everywhere else in the world. I am bombarded from friends dealing in share market with requests of how to calculate various indicators to judge the operating efficiency of a spinning organization. One of the question being how to calculate the production per spindle in a ring frame.
Kilogram per spindle depends upon the count, spindle speed, efficiency of ring frame and twist per inch. In general, higher the count, lower the kilograms per spindle. Similarly higher the twist per inch, lower the kilograms per spindle. Ring frame efficiency varies from 90-93%, it decreases as the count increases with about 91% for 20s and 93% for 40s count. A formula for calculating the kg per spindle is given in the second link below.
As a rule of thumb, a mill with an average 70s count will be giving .200 kg per spindle per day, a mill with 35s count will give approx double, that is .400 gms per day. Similarly production in Kg per day for other counts can be calculated.
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