北京市石景山区一清代墓葬出土纺织品染料与染色方法综合研究

清代的染色技术无论在染料的选择、染色方法,还是在获得颜色的数量上均达到我国古代天然染料染色的最高峰。文献和传世品研究极大推进了对清代纺织品染色技术的了解,但对清代考古纺织品染料的分析研究尚无结果发表。在此,对北京市石景山区2006年出土清代墓葬中纺织品的染料和染色方法进行了研究。化学分析使用超高效液相色谱法,首次将我国考古染料结合历史文献、传世纺织品颜色及染料组成详细比对,检测出苏木、黄檗、含鞣花酸染料(疑为橡斗)及蓝草四种染料。大多数样品上鉴定出一到两种染料,少数样品可能由三种或更多染料染成。相同的染料组合可以通过不同用量获得深浅不同的颜色。研究第一次对同一墓葬出土不同织物的染色方法进行比较,发现同种染料可以用于染不同类型、质地和用途的织物。这套纺织品所用的染料和染色方法与文献记载和传世样品都相符合。这一研究也是针对清代考古出土纺织品染料展开的首次成功的分析鉴定,补充了传世纺织品和染色历史文献,是清代染色史的重要部分。     

纸质文献保护修复中的干式清洁方法综述

本文对纸质文献的干式清洁方法进行了系统梳理,介绍了十种常用的方法,并说明其工具、材料及操作过程,对存在的问题和优缺点做出简要评价。除此之外,还介绍了三种较前沿的方法,并对其原理和研究现状进行了总结及评价。     

秦始皇帝陵园出土彩绘青铜水禽表面彩绘工艺研究

为全面了解秦始皇帝陵园出土青铜水禽表面彩绘装饰工艺的技术内涵,利用显微观察、偏光显微鉴定、拉曼光谱分析等手段,对秦始皇帝陵园K0007陪葬坑出土彩绘青铜水禽表面彩绘装饰工艺进行了系统的考察和研究。研究结果显示,白色颜料为骨白,黑色颜料为炭黑;彩绘层为多层绘制而成,在结构上与秦陵出土陶俑、陶马表面彩绘具有明显区别;彩绘绘制技法包括平涂及堆绘两种,其中堆绘主要用于羽毛纹路羽轴的绘制,施彩工具可能为毛笔或毛刷。彩绘作为青铜器的装饰工艺主要出现于秦汉时期,但并没有得到广泛应用,可能与彩绘装饰自身的脆弱性以及青铜器的功能由礼容器转变为实用器有关。     

环十二烷在彩绘织物湿洗中的临时性封护工艺研究

彩绘颜料与织物通过粘合剂相结合的方式决定了彩绘部分的不稳定性,大多彩绘织物都因此经不起湿洗.为此,本实验对环十二烷在彩绘织物湿洗中对彩绘部分的临时性封护加固处理的可行性、效果和安全性进行了研究.通过正交实验法,筛选出了环十二烷的最佳施加工艺条件:双面、刷涂、一遍、环十二烷加热至62℃,并对与环十二烷升华速率相关的环境条件进行了对比研究.实验证明,环十二烷对织物强度以及纤维的微观分子结构等方面没有明显影响,环十二烷在彩绘织物上的应用是安全的.实验启示,本实验的研究思路不仅适用于彩绘织物,对其它类型纺织品文物甚至其它文物如纸张、字画、壁画等的保护修复也有借鉴意义.     

玉带板初探

玉带板始兴于唐代,终于明代。它作为皇帝和官僚贵族革带上的佩饰,是等级和地位的象征。本文对各个时期玉带板的形制、纹饰和雕琢技法进行了具体地分析。     

Satellite imagery and archaeology: the example of CORONA in the Altai Mountains

Satellite imagery, and specifically CORONA, is now of common use in archaeology. CORONA, as it produces two images of the same spot (afterward and forward), allows for stereoscopic view and is a perfect tool for the production of maps, especially in remote areas, where maps are not reliable of even absent.     

Millet and sauce: The uses and functions of querns among the Minyanka (Mali)

The central role of grinding activities in the dietary practices of traditional agricultural populations can be approached from an ethnoarchaeological point of view. The comparison of ethnographic references raises the question whether the function and the socioeconomic context in which grinding slabs are used allow to assess issues related to conclusions drawn from archaeological contexts. Our discussion is based on the analysis of the manufacturing of grinding slabs, their use cycles and their social status in several Minyanka villages (Mali), providing useful references when examining the way in which archaeologists explain and interpret technological, functional and spatial observations. The typological and technical evolution and variability of querns results from a combination of several factors determined by the available raw materials, the skill of shaping techniques, the organisation of manufacturing and the transference of the function of grinding tools. But these factors alone cannot explain the encountered range of variation. Our study thus emphasises the very role of cultural aspects within these temporal and regional developments, and the impossibility of dissociating the use of a quern from its socio-economic context.     

Recovery of a lost wall painting at the Etruscan Tomb of the Blue Demons in Tarquinia (Viterbo,Italy) by multispectral reflectometry and UV fluorescence imaging

This paper presents the results of a multispectral reflectometry and ultraviolet (UV) fluorescence study on the entrance wall of the Tomb of the Blue Demons in the Necropolis of Monterozzi (450–430 bc ) in Tarquinia (Viterbo, Italy), which is a UNESCO site. The technique is based on the acquisition of a multispectral set ranging from 10 to 25 images, acquired at wavelengths between 370 and 1120 nm, with a spectral width of 50 nm per image, using both halogen lamps for visible and infrared images and high‐purity UV diodes for fluorescence. Blind‐source separation algorithms were then applied to the whole image set to extract from the resulting images the details not otherwise visible in the single spectral images. The multispectral technique presented was tested and improved upon over the last decade on ancient Etruscan and Roman wall paintings and, because of its quickness and cost‐effectiveness, it can now be proposed as a powerful tool for the study of poorly conserved archaeological wall paintings and a preliminary diagnostic survey before any future conservation intervention on them.