Calnan C D
Acta Derm Venereol Suppl (Stockh). 1979;59(85):27-32.
Proven allergic contact dermatitis from carbon paper is an exceptional rarity; the reported causes are dyes and plasticisers. But carbon paper is gradually being replaced by pressure-sensitive or carbonless copy paper, particularly for business forms. The method depends on mechanical pressure or chemical transfer. For the latter, colour formers are held in microcapsules, which rupture under pressure, and released when they produce the colour. Some office workers have claimed that the handling of used carbonless papers are responsible for symptoms affecting the skin, eyes, and upper respiratory tract, as well as systemic symptoms including headaches, drowsiness and fatigue. Patch tests are negative. If the symptoms are attributable to carbonless paper it is suggested that the colour former solvents are most likely to be responsible.
经证实由复写纸引起的过敏性接触性皮炎极为罕见；报告的病因是染料和增塑剂。但复写纸正逐渐被压敏纸或无碳复写纸取代，尤其是用于商业表格。其方法取决于机械压力或化学转移。对于后者，成色剂被封装在微胶囊中，微胶囊在压力下破裂，并在产生颜色时释放成色剂。一些办公室工作人员声称，处理用过的无碳复写纸会导致影响皮肤、眼睛和上呼吸道的症状，以及包括头痛、嗜睡和疲劳在内的全身症状。斑贴试验呈阴性。如果症状归因于无碳复写纸，提示成色剂溶剂最有可能是病因。
