04424631960, 9884350700 #70/1, Market Lane, 7th Street, Kaladipet, Thiruvottiyur, Chennai 600 019. Tamil Nadu, India

Microphotography in Archives -4

Advantages and Disadvantages of Microphotography Advantages of Microphotography:     Since the first practical microfilm camera was developed in 1928 microfilm has become more and more versatile. The most common uses by archives are as follows: For Referencing: The purpose is to provide the researcher with exact copies of documents at a cost far less than […]

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Microphotography in Archives -3

Uses of Microphotography     Microphotography can solve a number of problems in the archives. Firstly, microphotographs need much less filing space than the original publications. When carefully prepared, micro-records have a higher degree of permanence than most modern papers. [1] They are easily and quickly produced at low cost. For these reasons, microphotographs of manuscripts, […]

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Microphotography in Archives -2

Types of Microforms     The term “Microform” covers all forms of micro-images – these may be transparent or opaque, and they may be in the form of film rolls of various widths and lengths, in the form of film strips, or in the form of sheets or cards of various sizes. All microforms are reduced […]

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Records- Paper, Palm Leaves, Birch Bark, Papyrus 2

Papyrus             Papyrus is a material similar to thick paper that was used in ancient times as a writing surface. It was made from the pith of the papyrus plant, Cyprus papyrus, a wetland sedge.  Papyrus can also refer to a document written on sheets of such material, joined together side by side and rolled up into a scroll, an early form of […]

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State Archives of Tamil Nadu – 2

Preservation and Reprography: In 1920, a separate section for mending the records was started with six members were deputed to undergo training in mending at the Imperial Record Office, Calcutta in 1921, who in turn imparted in service training to other menders.   Now the preservation division consists of 39 skilled preservation clerks and 9 skilled […]

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Records- Paper, Palm Leaves, Birch Bark, Papyrus, Parchment and Vellum, Textiles and Filing System of Records

Papers           Paper has various properties that contribute to its performance, the most notable of which are pH level, strength, opacity and whiteness. Acidity and alkalinity are measured on a scale known as the pH scale. Papers with a high level of acidity tend to deteriorate quickly. This is because the acids in the paper […]

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Importance of Archives

 Introduction An archive is an accumulation of historical records or the physical place they are located. Archives contain primary source documents that have accumulated over the course of an individual or organization’s lifetime, and are kept to show the function of that person or organization. Professional archivists and historians generally understand archives to be records […]

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Chemical Deterioration

Introduction Deterioration refers to a change of state of any materials from the original form caused by interplay between the object and the agents of destruction.   The different types of deterioration of the paper-based materials are reflected in wear and tear, shrinkage, cracks brittleness, warping, bio-infestation, discoloration, abrasion, hole, dust and dirt accumulation etc.  Chemical […]

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Physical Deterioration of Records -5

Poor Handling and Storage: Records are easily damaged through handling and improper storage. Papers are often folded, bent, or rolled. Photographs and negatives sustain damage from oily fingers. Computer tapes, disks, audio cassettes and reels become damaged through over-handling, careless storage, or exposure to magnets or magnetic fields. Incorrect storage furniture and storage enclosures will […]

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Physical Deterioration of Records -4

Light Apart from other causes earlier discussed, light can, to a large extent, be regarded as an independent and prime cause of deterioration of museum objects. The type of materials forming part of the museum collection that are subject to damage by light are pigments and dyestuff, including inks; paper and other cellulose materials; and, […]

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