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Showing posts with label industrial. Show all posts
Showing posts with label industrial. Show all posts
  • Book coverPolyolefin fibres: Industrial and medical applications Edited by S C O Ugbolue, University of Massachusetts, USA
    Woodhead Textiles

    - reviews the most important polyolefins including polyethylene and polyproplene, their structural and chemical properties as well as production methods
    - examines methods to improve the functionality of polyolefin fibres including production methods and quality control

    Polyolefins are one of the most widely used commercial polymers. This book reviews the most important polyolefins, including polyethylene and polypropylene. These versatile fibres are durable, chemically resistant, lightweight, economical and functional. Polyolefin fibres: industrial and medical applications provides a comprehensive review of the structure and properties of this group of fibres, together with methods to improve the functionality of polyolefins and their range of applications.

    The first set of chapters discusses the different types of polyolefins, their structural and chemical properties as well as their production methods. The second group of chapters examines how to improve the functionality of polyolefin fibres. A final group of chapters addresses how polyolefins can be incorporated into specific applications such as industrial, medical and automotive products.

    Written by a distinguished team of international contributors, Polyolefin fibres: industrial and medical applications is a quintessential reference for textile technologists, fibre scientists, yarn and fabric manufacturers and also those in academia.

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  • Polyolefin fibers: Industrial and medical applications Edited by S C O Ugbolue, University of Massachusetts, USA

    Woodhead Textiles Series No. 82

    - reviews the most important polyolefins including polyethylene and polyproplene, their structural and chemical properties as well as production methods
    - examines methods to improve the functionality of polyolefin fibres including production methods and quality control

    Polyolefins are one of the most widely used commercial polymers. This book reviews the most important polyolefins, including polyethylene and polypropylene. These versatile fibres are durable, chemically resistant, lightweight, economical and functional. Polyolefin fibres: industrial and medical applications provides a comprehensive review of the structure and properties of this group of fibres, together with methods to improve the functionality of polyolefins and their range of applications.

    The first set of chapters discusses the different types of polyolefins, their structural and chemical properties as well as their production methods. The second group of chapters examines how to improve the functionality of polyolefin fibres. A final group of chapters addresses how polyolefins can be incorporated into specific applications such as industrial, medical and automotive products.

    Written by a distinguished team of international contributors, Polyolefin fibres: industrial and medical applications is a quintessential reference for textile technologists, fibre scientists, yarn and fabric manufacturers and also those in academia.

    more
  • Jute Industrial Crops The importance of one cash crop overshadows all else as the source of Bangladesh's export earnings. Bangladesh is the world's largest producer of jute, a fibrous substance used in making burlap, sacks, mats, rope and twine, and carpet backing. Jute is sold on the international market either raw or in the form of manufactured goods. This so-called "golden fiber" is cultivated on the same land as rice; thus each season farmers must decide which crop to plant.

    During the colonial period, when East Bengal was used by the British to produce primary goods for processing elsewhere, raw jute was the main product. Calcutta became the manufacturing center where jute was transformed into twine and rope, sacking material, and carpet backing. The partition of British India in 1947 put an international boundary between the source of the basic commodity and the manufacturing center and imposed a great burden on Pakistan to compensate for the disruption of the industry that was its greatest source of foreign earnings. Between 1947 and 1971 jute mills were constructed in East Pakistan, but industrialization proceeded slowly.

    In the 1960s, petroleum-based synthetics entered the market, competing with jute for practically all of its uses. The upheavals culminating in the emergence of independent Bangladesh drove many traditional buyers of jute to shift to synthetics. World trade in jute and jute goods declined absolutely from 1.8 million tons in 1970 to 1.5 million tons in 1982. Despite some major year-to-year swings, prices fell precipitously through the mid-1980s. Prices were too low to cover the costs of production, but the government nonetheless deemed it essential to subsidize growers and industry and ensure the continued existence of as large a foreign market as possible.

    There have been enormous year-to-year fluctuations both of producer prices and of production. An extreme example occurred between FY 1984 and FY 1986. Carry-over stocks had been run down since the previous production surge in FY 1980, and serious floods in 1984 resulted in unanticipated production losses. The price doubled to US$600 per ton at the export level, which triggered the traditional response of farmers; they planted much more of their land in jute, and between one year and the next production rose more than 50 percent, from 5.1 million bales in FY 1985 to 8.6 million bales the following year. History proved true to itself yet again when export prices then fell by 50 percent at the export level and by more than 30 percent at the farm-gate level.

    When the farm-gate price for jute is 50 percent higher than the price for rice, farmers respond by planting more land in jute at the expense of rice. With the expansion of irrigation facilities in the 1980s, the economic incentives to stick with rice have increased, but there may be scope for increasing jute production by substituting it for the low-yield broadcast auks rice grown on unrelated land during the same season as jute.

    High as Bangladesh's share of world trade has been--in 1985 it amounted to 77 percent of all raw jute trade and 45 percent of jute goods--there are realistic possibilities for expanding the share still further. The World Bank has estimated that Bangladesh's share could rise to 84 percent for raw jute and 55 percent for manufactures. Jute production appeared in the late 1980s to be an essential part of the long-term development plan because, for all the troubles and struggles associated with its planting and marketing, no alternative activity offered any promise of being more profitable.

    Of thirty major primary commodities traded internationally, only about six have as much price and supply instability as jute. In FY 1986 export sales remained low despite a 35-percent decline in export prices; the fall in world oil prices had also resulted in declines in the prices of polypropylene substitutes for jute as well, and most buyers that had switched to synthetics chose not to return to jute. In the late 1980s, there was nothing in the offing to arrest the trend of several decades of decreasing global demand for jute and declines in the value of jute relative to the goods Bangladesh must import to meet the basic needs of a desperately poor economy.

    Some hope for a better future has been placed in cooperation among jute-producing countries through the International Jute Organization, based in Dhaka. Member countries in 1988 were the producing countries of Bangladesh, Bhutan, China, India, Nepal, and Thailand and more than twenty consuming countries, including the United States. The goals of the fledgling International Jute Organization were appropriately modest to begin with, centering on better dissemination of basic information, coordination of agricultural and industrial research and of economic studies, and steps toward coordination of marketing. It remained to be seen in mid-1988 whether this poorly financed new organization, representing the first feeble effort at a coordinated approach to the problems of jute, would be effective in arresting its long decline as an important international commodity.

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  • Textile designer

    Job description and activities:

    Textiles designers work in knit, weave and print to create two-dimensional designs that can be produced in a design repeat for the production of commercial or artistic fabrics or textile products.

    Working in both industrial and non-industrial locations, they often specialize or work in a specialist context, within the textile industry. The two major fields are:

    * Interiors (upholstery, soft furnishings and carpets);

    * Fabrics for clothing (fashion or specialist, e.g. fire-proof).

    Textile designers may also work in associated industry functions, for example, designing wrapping paper, packaging, greetings cards and ceramics.

    Typical work activities include:

    * making up sets of sample designs;

    * working out a design formula for a group of samples;

    * liaising with clients, technical staff, marketing and buying staff to plan and develop designs;

    * Accurately interpreting and representing clients' ideas;

    * producing sketches and design ranges for presentation to customers;

    * assessing and approving completed items;

    * working independently, if self-employed, or liaising closely with colleagues as part of a small team;

    * using specialist computer aided design (CAD) software to produce a range of designs;

    * experimenting with color, fabric and texture;

    * maintaining up-to-date knowledge of new design and production techniques;

    * developing new design concepts;

    * ensuring that projects are completed on time;

    * visiting sites and other sources of ideas for designs;

    * sourcing fabrics and other materials at trade fairs, markets and antique shops;

    * Attending trade shows, as a delegate or as an exhibitor - this may involve representing the company with a display or stand, or appraising the work of competitors;

    * keeping up to date and spotting fashion trends in fabric design by reading forecasts in trade magazines and using internet resources;

    * developing a network of business contacts;

    * if self-employed, managing marketing, finances and day-to-day business activities.

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