Solution for the preservation of the fibrous casing of needles or branches of nadelgehoelzen and a process for the preservation by means of this solution

摘要

AbstractA solution and process for preserving Douglas Firneedles while preventing shedding thereof from the branchto which they are naturally attached, producing a naturallooking product suitable for display purposes. The branches,with attached needles, are immersed in a solution comprising(in amounts per litre of solution):300 - 500 ml water200 - 300 ml ethyl alcohol0 - 75 ml ethylene glycol50 - 75 ml propionic acid0 - 20 ml glycerin100 - 150 ml formalin50 - 175 ml propylene glycol40 - 75 gms citric acid1 - 7 gms magnesium sulphate15 - 25 gms cupric sulphate5 - 10 gms sodium sulphite0 - 10 gms seaweed extract,for a period of up to about two weeks and subsequently airdried.