Preservation in Goa Archives has attained great significance as it cares to conserve scientifically the archival holdings of this Directorate.The Preservation Module created here is tailor-made since its inception in early '70s to cater to the needs of preservation/conservation and restoration, besides reprography and as of today, it has progressed technologically in the field. As such it is branched into 4 sub-divisions asunder.
This is transformed into a totally Digital Hub using the innovative technology for Digital Reprography of documents catering to the needs of Public/Scholars. Besides, digital imaging on CD-Roms is provided for the benefit of the Scholars thus replacing the obsolete process of darkroom photography.
The Laboratory is equipped to take up the deacidification processes much in use for treating and stabilizing the acidic/brittle and fragmented folios of documents. Scientific methodology of aqueous/non-aqueous processes is employed for checking and monitoring the Ph of paper documents.
3. Repairs and Binding
The Bindery has a fleet of 12 binders engaged in scientific repairs and reinforcement of documents. All stabilized documents are reinforced using an anti-fungal synthetic paste of high viscosity such as sodium salts of carboxymethyl cellulose and acid free LZ tissue and after the process of repairs and guarding , the documents are stitched into gathers and subsequently bound into volumes / Books with suitable captioning, dating and hand-tooling of spines in half-leather in gold-embossing etc.
This is a specialized technical discipline involving precise knowledge of paper chemistry and related factors that contribute towards the deterioration of documents. The methodology used in the Directorate for preservation purpose may be classified into two categories. These are -
a. Preventive Preservation
b. Repairs and Rehabilitation of documents (as detailed above under serial no 2 & 3).
In the preventive preservation, maximum care is taken to ensure that records are stacked in dust-free and unpolluted Repositories and for the purpose regular upkeep and maintenance of Repositories is practiced by constant vacuum-cleaning cum hand dusting programmes, weekly spraying of pesticidal/insecticidal formulations, spreading of deterrents such as naphthalene and sterilization/fumigation programmes are carried out in closed chambers. All preventive measures are taken to check the presence or growth of any injurious pests. The Repositories are also kept well ventilated with air-circulators and proper lighting and measures are contemplated to optimize the climatic factors such as temperature and relative humidity in the stack-area, this being a vital feature in the upkeep of records.