Abstract

Mending tears in translucent papers is a challenging task that requires mending materials with specific mechanical and optical properties. Recently, translucent films from microfibrillated cellulose have been suggested as an attractive alternative to traditional repair materials. We prepared custom films from a commercial microfibrillated cellulose suspension and compared their mechanical and optical properties as mending supports with commercially manufactured microfibrillated cellulose films and Japanese tissue. Tear mending of modern and historic translucent paper samples using the custom-made films and Klucel G or isinglass as adhesives showed satisfactory strength and resilience, and accelerated ageing tests yielded acceptable visual results. A case study on a translucent paper document from the collection of The National Archives, UK, is detailed. We conclude that custom-made tear mending materials from commercially available microfibrillated cellulose suspensions present a cost-effective and attractive approach for the mending of translucent papers.

摘要

修补半透明纸上的撕裂是一项具有挑战性的任务，需要修补具有特定机械和光学特性的材料。最近，微纤化纤维素制成的半透明薄膜已被建议作为传统修复材料的有吸引力的替代品。我们从商业微纤化纤维素悬浮液中制备了定制薄膜，并将它们作为修补支持物的机械和光学性能与商业制造的微纤化纤维素薄膜和日本组织进行了比较。使用定制薄膜和 Klucel G 或鱼胶玻璃作为粘合剂的现代和历史半透明纸样品的撕裂修补显示出令人满意的强度和弹性，加速老化测试产生了可接受的视觉结果。英国国家档案馆收藏的半透明纸质文件的案例研究，很详细。我们得出的结论是，从市售的微纤化纤维素悬浮液中定制的撕裂修补材料为修补半透明纸提供了一种具有成本效益且有吸引力的方法。