قراءة كتاب The Jute Industry: From Seed to Finished Cloth

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The Jute Industry: From Seed to Finished Cloth

The Jute Industry: From Seed to Finished Cloth

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دار النشر: Project Gutenberg
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to experiment with it, but ultimately they were persuaded to do so; these persistent requests for trials, and the interest which was finally aroused, formed the nucleus of the existing important jute industry.

Apart from the above-mentioned efforts, the introduction of the jute fibre into Great Britain was delayed until 1822, when the first small consignment reached Dundee--now the Western home of the jute industry. This quantity was imported into this country with the special object of having it treated by mechanical means, much in the same way as flax fibre was being treated. At this period Dundee was a comparatively important textile centre in regard to the spinning and weaving of flax and hemp; it was, in consequence, only natural that the longer, but otherwise apparently similar and coarser, jute fibre should be submitted to the machinery in vogue for the preparation and spinning of flax and hemp. When we say similar, we mean in general appearance; it is now well-known that there is a considerable difference between jute fibre and those of hemp and flax, and hence the modifications in preparation which had ultimately to be introduced to enable the jute fibre to be successfully treated. These modifications shall be discussed at a later stage.

It might be stated that while only 368 cwt. of jute fibre was reported as being shipped from Calcutta to this country in 1828, the imports gradually increased as time passed on. The yarns which were made from the fibre were heavier or thicker than those in demand for the usual types of cloth, and it was desirable that other types of cloth should be introduced so that these yarns could be utilized. About the year 1838, representatives of the Dutch Government placed comparatively large orders with the manufacturers for jute bags to be used for carrying the crop of coffee beans from their West Indian possessions. The subsequent rapid growth of the industry, and the demand for newer types of cloth, are perhaps due more to the above fortunate experiment than to any other circumstance.

By the year or season 1850-51, the British imports of jute fibre had increased to over 28,000 tons, and they reached 46,000 tons in the season 1860-61. Attention meanwhile had been directed to the possibility of manufacturing jute goods by machinery in India--the seat of the cultivation and growth of the fibre. At least such a probability was anticipated, for in the year 1858 a small consignment of machinery was despatched to Calcutta, and an attempt made to produce the gunny bags which were typical of the Indian native industry.

The great difference between the more or less unorganized hand labour and the essential organization of modern mills and factories soon became apparent, for in the first place it was difficult to induce the natives to remain inside the works during the period of training, and equally difficult to keep the trained operatives constantly employed. Monetary affairs induced them to leave the mills and factories for their more usual mode of living in the country.

In the face of these difficulties, however, the industry grew in India as well as in Dundee. For several years before the war, the quantity of raw jute fibre brought to Dundee and other British ports amounted to 200,000 tons. During the same period preceding the war, nearly 1,000,000 tons were exported to various countries, while the Indian annual consumption--due jointly to the home industry and the mills in the vicinity of Calcutta--reached the same huge total of one million tons.

The growth of the jute industry in several parts of the world, and consequently its gradually increasing importance in regard to the production of yarns and cloth for various purposes, enables it to be ranked as one of the important industries in the textile group, and one which may perhaps attain a much more important position in the near future amongst our national manufacturing processes. As a matter of fact, at the present time, huge extensions are contemplated and actually taking place in India.


CHAPTER II. CULTIVATION

Botanical and Physical Features of the Plant. Jute fibre is obtained from two varieties of plants which appear to differ only in the shape of the fruit or seed vessel. Thus, the fruit of the variety Corchorus Capsularis is enclosed in a capsule of approximately circular section, whereas the fruit of the variety Corchorus Olitorius is contained in a pod. Both belong to the order Tiliacea, and are annuals cultivated mostly in Bengal and Assam.

Other varieties are recorded, e.g. the Corchorus Japonicus of Japan, and the Corchorus Mompoxensis used in Panama for making a kind of tea, while one variety of jute plant is referred to in the book of job as the Jew's Mallow; this variety C. Olitorius, has been used in the East from time immemorial as a pot herb.

The two main varieties C. Capsularis and C. Olilorius are cultivated in Bengal for the production of fibre, while for seed purposes, large tracts of land are cultivated in Assam, and the seeds exported for use principally in Mymensingh and Dacca.

The above two varieties of the jute plant vary in height from 5 to 15 feet, and, in a normal season, reach maturity in about four months from the time of sowing. In some districts the stems of jute plants are sometimes rather dark in colour, but, in general, they are green or pink, and straight with a tendency to branch. The leaves are alternate on the stems, 4 to 5 inches in length, and about 1-1/2 inches in breadth with serrated edges. Pale yellow flowers spring from the axil (axilla) of the leaves, and there is an abundance of small seeds in the fruit which, as mentioned, is characteristic of the variety.

While many attempts have been made to cultivate jute plants in various parts of the world, the results seem to indicate that the necessary conditions for the successful cultivation of them are completely fulfilled only in the Bengal area, and the geographical position of this province is mainly responsible for these conditions. On referring to a map of India, it will be seen that Bengal is directly north of the bay of that name, and is bounded on the north by the great Himalayan mountains.

During the winter period when the prevailing winds are from the north, large areas of the mountainous regions are covered with snow, but when the winds change and come from the south, and particularly during the warmer weather, the moist warm air raises the general temperature and also melts much of the snow on the mountain tracts. The rain and melted snow swell the two great rivers on the east and west of Bengal--the Patna and the Brahmaputra--and the tremendous volume of water carries down decayed vegetable and animal matter which is ultimately spread on the flat areas of Bengal as alluvial deposits, and thus provides an ideal layer of soil for the propagation of the jute plants.

The cultivation of land for the growing of jute plants is most extensively conducted in the centres bordering on the courses of the rivers, and particularly in Mymensingh, Dacca, Hooghly and Pabna, and while 90 per cent. of the fibre is produced in Bengal, Orissa and Bihar, there is 10 per cent. produced outside these areas.

The Corchorus Capsularis variety is usually cultivated in the higher and richer soils, while the Corchorus Olitorius variety is most suited for the lower-lying alluvial soils, and to the districts where the rainfall is irregular; indeed, the C. Olitorius may be grown in certain other districts of India which appear quite unsuitable for the C. Capsularis.

The farming operations in India are rather simple when compared with the corresponding operations in this country; there is evidently not the same necessity for extensive working of the Indian soil as there is for the heavier lands;

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